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51. Front Cover Picture. The cover image is based on the Full Paper Synthesis, reactivity and preliminary biological activity of iron(0) complexes with cyclopentadienone and amino‐appended N‐heterocyclic carbene ligands https://doi.org/10.1002/aoc.4779

Author

Cingolani, Andrea, Zanotti, Valerio, Zacchini, Stefano, Massi, Massimiliano, Simpson, Peter V., Maheshkumar Desai, Nima, Casari, Ilaria, Falasca, Marco, Rigamonti, Luca, Mazzoni, Rita, Cingolani, Andrea, Zanotti, Valerio, Zacchini, Stefano, Massi, Massimiliano, Simpson, Peter V., Maheshkumar Desai, Nima, Casari, Ilaria, Falasca, Marco, Rigamonti, Luca, and Mazzoni, Rita

Subjects
n.d
Abstract

n.d.

Published
2019

52. Structure illumination microscopy imaging of lipid vesicles in live bacteria with naphthalimide-appended organometallic complexes

Author

Ranieri, Anna Maria, primary, Vezzelli, Matteo, primary, Leslie, Kathryn, primary, Huang, Song, primary, Stagni, Stefano, primary, Jacquemin, Denis, primary, Jiang, Haibo, primary, Hubbard, Alysia, primary, Rigamonti, Luca, primary, Watkin, Elizabeth, primary, Ogden, Mark, primary, New, Elizabeth, primary, and Massi, Massimiliano, primary

Published
2021
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53. Structure illumination microscopy imaging of lipid vesicles in live bacteria with naphthalimide-appended organometallic complexes

Author

Maria Ranieri, Anna, primary, Vezzelli, Matteo, additional, Leslie, Kathryn G., additional, Huang, Song, additional, Stagni, Stefano, additional, Jacquemin, Denis, additional, Jiang, Haibo, additional, Hubbard, Alysia, additional, Rigamonti, Luca, additional, Watkin, Elizabeth L. J., additional, Ogden, Mark I., additional, New, Elizabeth J., additional, and Massi, Massimiliano, additional

Published
2021
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54. Copper(II) complexes of salen analogues with two differently substituted (push-pull) salicylaldehyde moieties. A study on the modulation of electronic asymmetry and nonlinear optical properties

Author

Rigamonti, Luca, Demartin, Francesco, Forni, Alessandra, Righetto, Stefania, and Pasini, Alessandro

Subjects
Copper compounds -- Chemical properties, Substitution reactions -- Analysis, Excited state chemistry -- Research, Chemistry
Abstract

Copper(II) complexes of salen analogues in which the two salicylaldehyde moieties carry different substituents in position 5, producing a push-pull charge asymmetry are presented. The results obtained from the first principles calculations have provided a reliable description of both structural and excited-state properties of the complexes, as well as of their nonlinear optical (NLO) properties.

Published
2006

59. Synthesis, reactivity and preliminary biological activity of iron(0) complexes with cyclopentadienone and amino-appended N-heterocyclic carbene ligands

Author

Cingolani, Andrea, Zanotti, Valerio, Zacchini, Stefano, Massi, Massimiliano, Simpson, Peter V., Maheshkumar Desai, Nima, Casari, Ilaria, Falasca, Marco, Rigamonti, Luca, and Mazzoni, Rita

Subjects
cyclopentadienone, cytotoxicity, Iron(0) complexes, N-heterocyclic carbene, photoactivation, Chemistry (all), Inorganic Chemistry
Published
2019

61. Front Cover

Author

Cingolani, Andrea, primary, Zanotti, Valerio, additional, Zacchini, Stefano, additional, Massi, Massimiliano, additional, Simpson, Peter V., additional, Maheshkumar Desai, Nima, additional, Casari, Ilaria, additional, Falasca, Marco, additional, Rigamonti, Luca, additional, and Mazzoni, Rita, additional

Published
2019
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62. Synthesis, reactivity and preliminary biological activity of iron(0) complexes with cyclopentadienone and amino‐appended N‐heterocyclic carbene ligands

Author

Cingolani, Andrea, primary, Zanotti, Valerio, additional, Zacchini, Stefano, additional, Massi, Massimiliano, additional, Simpson, Peter V., additional, Maheshkumar Desai, Nima, additional, Casari, Ilaria, additional, Falasca, Marco, additional, Rigamonti, Luca, additional, and Mazzoni, Rita, additional

Published
2019
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67. Intra-Articular Cytokine Levels in Adolescent Patients after Anterior Cruciate Ligament Tear

Author

Bigoni, Marco, primary, Turati, Marco, additional, Zatti, Giovanni, additional, Gandolla, Marta, additional, Sacerdote, Paola, additional, Piatti, Massimiliano, additional, Castelnuovo, Alberto, additional, Rigamonti, Luca, additional, Munegato, Daniele, additional, Franchi, Silvia, additional, Portinaro, Nicola, additional, Pedrocchi, Alessandra, additional, Omeljaniuk, Robert J., additional, Locatelli, Vittorio, additional, and Torsello, Antonio, additional

Published
2018
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68. Curcumin derivatives and Aβ-fibrillar aggregates: An interactions’ study for diagnostic/therapeutic purposes in neurodegenerative diseases

Author

Orteca, Giulia, primary, Tavanti, Francesco, additional, Bednarikova, Zuzana, additional, Gazova, Zuzana, additional, Rigillo, Giovanna, additional, Imbriano, Carol, additional, Basile, Valentina, additional, Asti, Mattia, additional, Rigamonti, Luca, additional, Saladini, Monica, additional, Ferrari, Erika, additional, and Menziani, Maria Cristina, additional

Published
2018
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70. Filling the Gap in Extended Metal Atom Chains: Ferromagnetic Interactions in a Tetrairon(II) String Supported by Oligo-α-pyridylamido Ligands

Author

Nicolini, Alessio, primary, Galavotti, Rita, additional, Barra, Anne-Laure, additional, Borsari, Marco, additional, Caleffi, Matteo, additional, Luo, Guangpu, additional, Novitchi, Ghenadie, additional, Park, Kyungwha, additional, Ranieri, Antonio, additional, Rigamonti, Luca, additional, Roncaglia, Fabrizio, additional, Train, Cyrille, additional, and Cornia, Andrea, additional

Published
2018
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75. Length-dependent convergence and saturation behavior of electrochemical, linear optical, quadratic nonlinear optical, and cubic nonlinear optical properties of dipolar alkynylruthenium complexes with oligo(phenyleneethynylene) bridges

Author

Babgi, Bandar, Rigamonti, Luca, Cifuentes, Marie P., Corkery, T. Christopher, Randles, Michael D., Schwich, Torsten, Petrie, Simon, Clays, Koen, Samoc, Marek, and Humphrey, Mark G.

Subjects
Charge transfer -- Analysis, Photons -- Evaluation, Ruthenium -- Chemical properties, Chemistry
Abstract

The syntheses of dipolar alkynylruthenium complexes with oligo(phenyleneethynylene) bridges, together with those of precursor alkynes, complexes with the donor-[pi]-bridge-acceptor formulation that has afforded efficient quadratic and cubic NLO compounds are reported. The quadratic nonlinearity [[beta].sub.1064] and two-photon absorption cross-section has reached maximal values at this same [pi]-bridge length, a similar saturation behavior that has reflected a common importance of ruthenium-to-alkynyl ligand charge transfer in electronic and optical behavior in these molecules.

Published
2009

76. Organometallic complexes for nonlinear optics. 43: quadratic optical nonlinearities of dipolar alkynylruthenium complexes with phenyleneethynylene/phenylenevinylene bridges

Author

Rigamonti, Luca, Babgi, Bandar, Cifuentes, Marie P., Roberts, Rachel L., Petrie, Simon, Stranger, Robert, Righetto, Stefania, Teshome, Ayele, Asselberghs, Inge, Clays, Koen, and Humphrey, Mark G.

Subjects
Density functionals -- Usage, Equations, Quadratic -- Usage, Ruthenium -- Chemical properties, Ruthenium -- Structure, Chemistry
Published
2009

79. Small bowel perforation caused by pancreaticojejunal anastomotic stent migration after pancreaticoduodenectomy for periampullary carcinoma

Author

Mari, Giulio, Costanzi, Andrea, Monzio, Nicola, Miranda, Angelo, Rigamonti, Luca, Crippa, Jacopo, Sartori, Paola, and Maggioni, Dario

Subjects
Intestinal Perforation, Stents, equipment and supplies
Abstract

Context Pancreaticoduodenectomy is the gold standard for patients with resectable periampullary carcinoma. The protection of the anastomosis by positioning of an intraluminal stent is a technique used to lower the frequency of anastomotic fistulas. However the use of anastomotic stents is still debated and stent related complications are reported. Case report A fifty-three-year old male underwent pancreaticoduodenectomy (PD) for a T2N0 periampullary carcinoma with a pancreaticojejunal (duct to mucosa) anastomosis protected by a free floating 6 Fr Nelaton stent in the Wirsung duct. Twenty-three months after surgery the patient accessed Emergency Department for severe abdominal pain associated to temperature, high white blood cell count and an significant increase in C reactive protein. Method Abdominal CT scan shown the presence of a tubular stent in the mesogastrium/lower right quadrant. No evident free intra-abdominal air was detected. The patient was submitted to explorative laparotomy. After debridement for localized peritonitis the Nelaton trans anastomotic stent was found in the abdomen. There was no evidence of bowel perforation, but intestinal loops covered with fibrin and suspect for impending perforation were resected. Conclusion There is a lack of evidence about the true rate of post-operative complications related to pancreatic stenting. We believe that in patients presenting with abdominal pain or peritonitis that previously underwent PD with stent-guided pancreaticojejunal anastomosis, the hypothesis of stent migration should at least be taken into consideration. Image: Decubitus sign of the stent., JOP. Journal of the Pancreas, Vol 16, No 2 (2015): March - p. 99-217

Published
2015

80. Push–pull unsymmetrical substitution in nickel(ii) complexes with tetradentate N2O2 Schiff base ligands: synthesis, structures and linear–nonlinear optical studies.

Author

Rigamonti, Luca, Forni, Alessandra, Righetto, Stefania, and Pasini, Alessandro

Subjects
*SCHIFF bases, *LIGANDS (Chemistry), *CHARGE transfer, *MOLECULAR conformation, *SOLVATOCHROMISM, *NICKEL
Abstract

New push–pull (A–D) nickel(ii) compounds of general formula [Ni(5-A-5′-D-saltn)] (3a–3l) with unsymmetrically-substituted N2O2 tetradentate Schiff base ligands are reported here. The ligands 5-A-5′-D-saltn2− (H2saltn = N,N′-bis(salicylidene)diaminopropane) possess differently-substituted salicylaldehyde (A/Dsal) moieties condensed to 1,3-diaminopropane (tn), and carry either an electron acceptor (A = H, Br, or NO2) or donor (D = H, Me, or OMe) group in the para position with respect to the coordinated phenoxido oxygen atoms. These compounds could be obtained by template synthesis involving derivatives [Ni(Gsal)2(H2O)2], 1a–e (G = NO2, Br, H, Me and OMe, respectively) and [Ni(GL)2], 2a–d (GL− = (E)-2-((3-aminopropylimino)methyl)-4-G-phenolate, G = NO2, Br, H and Me, respectively). Scrambling of the ligands and condensation to compounds 3 was suitably achieved by refluxing compounds 1 and 2 that carry the G groups suitable for the desired final A–D combination. Dinuclear intermediates [Ni2(μ-GL)2(G′sal)2] (4a,b,e,f,g) were also detected and isolated. The single-crystal X-ray diffraction structures of [Ni(5′-OMe-saltn)]·CHCl3 (3c·CHCl3), [Ni(5-Br-5′-OMe-saltn)]·EtOH (3g·EtOH) and [Ni(5-NO2-saltn)] (3j) show different degrees of distortion around the central core, leading to saddle-like (3c), planar (3g) and step-like (3j) molecular conformations. DFT geometrical optimization of the compounds showed that, for isolated molecules, the saddle-like conformation is slightly more stable with respect to the other conformations. UV-visible absorption spectra showed structured absorption profiles at about 320–440 nm, whose intensity was amplified by the presence of the nitro group, and this was assigned to a convolution of one metal-to-ligand charge transfer and two intra-ligand charge transfer transitions by TDDFT computations. Surprisingly, UV-visible spectra of the derivatives with Br were comparable to the derivatives with Me, suggesting that in this case the behaviour of the halogen was as a weak electron donor group. The experimental investigation (through electric-field-induced second-harmonic and solvatochromic measurements) of the second-order NLO responses of compounds 3, in conjunction with the theoretical calculations, revealed that the observed NLO efficiency is determined by the combined effect of two almost orthogonal charge transfer directions within the molecules, one along the axis approximately bisecting the donor and the accepting moieties and the other along the A–D axis. [ABSTRACT FROM AUTHOR]

Published
2019
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81. New Silver(I) Coordination Polymer with Fe4 Single-Molecule Magnets as Long Spacer.

Author

Rigamonti, Luca, Vaccari, Manuela, Roncaglia, Fabrizio, Baschieri, Carlo, and Forni, Alessandra

Subjects
COORDINATION polymers, SINGLE molecule magnets, MAGNETIZATION, NITROGEN, PERCHLORATES
Abstract

In continuation of our work on supramolecular architectures of single-molecule magnets (SMMs) as a promising strategy in developing their magnetic performance, in this paper we report the synthesis and single crystal X-ray structure of the centered triangular tetrairon(III) SMM, [Fe4(PhpPy)2(dpm)6], Fe4 (Hdpm = dipivaloylmethane, H3PhpPy = 2-(hydroxymethyl)- 2-(4-(pyridine-4-yl)phenyl)propane-1,3-diol), and its assembly in the coordination polymer {[Fe4(PhpPy)2(dpm)6Ag](ClO4)}n, Fe4Ag, upon reaction with silver(I) perchlorate. Thanks to the presence of the pyridyl rings on the two tripodal ligands, Fe4 behaves as divergent ditopic linker, and due to the Fe4:AgClO4 1:1 ratio, Fe4Ag probably possesses a linear arrangement in which silver(I) ions are linearly coordinated by two nitrogen atoms, forming 1D chains whose positive charge is balanced by the perchlorate anions. The stabilization of such a polymeric structure can be ascribed to the long distance between the two donor nitrogen atoms (23.4 Å) and their donor power. Fe4Ag shows slow relaxation of the magnetization which follows a thermally activated process with Ueff/kB = 11.17(18) K, τ0 = 2.24(17) 10-7 s in zero field, and Ueff/kB = 14.49(5) K, t0 = 3.88(8) 10-7 s in 1-kOe applied field, in line with what reported for tetrairon(III) SMMs acting as building blocks in polymeric structures. [ABSTRACT FROM AUTHOR]

Published
2018
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83. Diamondoid Structure in a Metal-Organic Framework of Fe4Single-Molecule Magnets

Author

Rigamonti, Luca, primary, Cotton, Carri, additional, Nava, Andrea, additional, Lang, Heinrich, additional, Rüffer, Tobias, additional, Perfetti, Mauro, additional, Sorace, Lorenzo, additional, Barra, Anne-Laure, additional, Lan, Yanhua, additional, Wernsdorfer, Wolfgang, additional, Sessoli, Roberta, additional, and Cornia, Andrea, additional

Published
2016
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84. New curcumin-derived ligands and their affinity towards Ga3+, Fe3+ and Cu2+: spectroscopic studies on complex formation and stability in solution.

Author

Rigamonti, Luca, Orteca, Giulia, Asti, Mattia, Basile, Valentina, Imbriano, Carol, Saladini, Monica, and Ferrari, Erika

Subjects
*ALZHEIMER'S disease, *NUCLEAR magnetic resonance spectroscopy
Abstract

The metal complexing ability in solution of four substituted curcumin (CUR)-derived ligands K3T, originated by the insertion of the –CH2CH2COOtBu branch on the central atom of the diketonic moiety of CUR and related derivatives with variable meta and para substituents (OH, OMe, H, OCOCH3) on the peripheral aromatic rings, is examined. These molecules can act as new chelators with biological properties comparable to those of CUR but with improved stability. In fact, curcuminoids represent new perspectives for the development of novel therapeutic agents for several diseases including Alzheimer's disease. CUR showed neuroprotective properties, and a probable mechanism of its action is related to the complexation ability towards endogenous metal ions Fe3+ and Cu2+. K3T derivatives retain the solvent-dependent diketo–ketoenol tautomerism, with the prevalence of the diketonic form in aqueous solution. They show enhanced stability in simulated physiological conditions (phosphate buffered solution at pH = 7.4) compared to CUR, together with similar or even higher anti-proliferative activity against human colon carcinoma cells HCT116. The addition of the metal ion causes dissociation of the enolic proton creating chelate complexes and shift of the tautomeric equilibrium toward the keto–enol species. The formation of metal complexes was followed and confirmed by both NMR (using Ga3+ as a diamagnetic probe for Fe3+) and UV-visible spectroscopy. All the ligands showed high affinity for Fe3+ and Ga3+, forming M : L 1 : 2 species. In view of therapeutic applications, notable is the good affinity of K3T31, i.e. the ligand bearing only OH groups in para positions of the aromatic rings, for Cu2+, and the ability of the Cu : K3T31 1 : 1 complex to bind to DNA. [ABSTRACT FROM AUTHOR]

Published
2018
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87. “High or low Inferior Mesenteric Artery ligation in Laparoscopic low Anterior Resection: study protocol for a randomized controlled trial” (HIGHLOW trial)

Author

Mari, Giulio, primary, Maggioni, Dario, additional, Costanzi, Andrea, additional, Miranda, Angelo, additional, Rigamonti, Luca, additional, Crippa, Jacopo, additional, Magistro, Carmelo, additional, Di Lernia, Stefano, additional, Forgione, Antonello, additional, Carnevali, Pietro, additional, Nichelatti, Michele, additional, Carzaniga, Pierluigi, additional, Valenti, Francesco, additional, Rovagnati, Marco, additional, Berselli, Mattia, additional, Cocozza, Eugenio, additional, Livraghi, Lorenzo, additional, Origi, Matteo, additional, Scandroglio, Ildo, additional, Roscio, Francesco, additional, De Luca, Antonio, additional, Ferrari, Giovanni, additional, and Pugliese, Raffaele, additional

Published
2015
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89. UHV deposition and characterization of a mononuclear iron(III) β-diketonate complex on Au(111)

Author

Cimatti, Irene, primary, Ninova, Silviya, additional, Lanzilotto, Valeria, additional, Malavolti, Luigi, additional, Rigamonti, Luca, additional, Cortigiani, Brunetto, additional, Mannini, Matteo, additional, Magnano, Elena, additional, Bondino, Federica, additional, Totti, Federico, additional, Cornia, Andrea, additional, and Sessoli, Roberta, additional

Published
2014
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96. Diamondoid Structure in a Metal-Organic Framework of Fe4 Single-Molecule Magnets.

Author

Rigamonti, Luca, Cotton, Carri, Nava, Andrea, Lang, Heinrich, Rüffer, Tobias, Perfetti, Mauro, Sorace, Lorenzo, Barra, Anne-Laure, Lan, Yanhua, Wernsdorfer, Wolfgang, Sessoli, Roberta, and Cornia, Andrea

Subjects
*SINGLE molecules, *MAGNETIC materials, *CRYSTALLINITY, *IRON compounds, *PYRIDYL compounds
Abstract

A 3D metal-organic framework (MOF) having single-molecule magnet (SMM) linkers was prepared in crystalline form by using a tetrairon(III) complex functionalised with two divergent pyridyl groups, namely [Fe4(pPy)2(dpm)6] ( 1; H3pPy=2-(hydroxymethyl)-2-(pyridin-4-yl)propane-1,3-diol, Hdpm=dipivaloylmethane). Reaction of 1 with silver(I) perchlorate afforded {[Fe4(pPy)2(dpm)6]2Ag}ClO4 ( 2), which crystallises in a cubic face-centred lattice and exhibits two interlocked diamondoid networks. In 2, the SMMs act as linear ditopic synthons, and silver(I) ions as tetrahedral nodes coordinated by four pyridyl nitrogen atoms. The magnetic properties of 1 ( S=5 and D≈−0.4 cm−1 in the ground spin state) are largely preserved in 2, which shows slow magnetic relaxation with an anisotropy barrier of Ueff/ kB=11.46(10) K in zero field and 14.25(8) K in an applied field of 1 kOe. However, crystal symmetry triggers highly noncollinear magnetic anisotropy contributions oriented at 109.47° from each other along the threefold axes of AgN4 tetrahedra, a unique scenario fully confirmed by a single-crystal cantilever torque magnetometry investigation. Magnetisation curves down to 0.03 K demonstrated the occurrence of a wide hysteresis loop when the magnetic field was swept along one of the four Ag−N bonds. By symmetry, the crystalline compound can then be persistently magnetised parallel or antiparallel to the four main diagonals of the unit cell, although the crystals have no overall second-order anisotropy. [ABSTRACT FROM AUTHOR]

Published
2016
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