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The partition coefficients of 51 organic compounds between SPME/PDMS and gas were compiled from the literature sources in this study. The effect of physicochemical properties and descriptors on the partitioning process of partition coefficients was explicated by the correlation analysis. The PDMS-gas partition coefficients were well correlated to the molecular weight of organic compounds (r = 0.832, p < 0.05). An empirical model, consisting of the molecular weight and the polarizability, was developed to appropriately predict the partition coefficients of organic compounds. The empirical model for estimating the PDMS-gas partition coefficient will contribute to the practical applications of the SPME technique.

The title complex, {[Cu(phen)(Ts-gly)(H2O)](Ts-gly)}n, where Ts-gly = N-p-Tolylsulfonyl-glycine and phen = 1,10-phenanthroline, was synthesized and its crystal structure was determined by X-ray diffraction analysis. The copper ion is in a slightly distorted square-pyramidal geometry and is coordinated by two N(N1, N2) atoms of 1,10-phenanthroline ligand and one O1 atom of water molecular and one O2 atom of Ts-gly ion, and a weak-coordination O3A atom of adjacent Ts-gly ion. The complex shows a one-dimensional zigzag chain bridged by the weak key role Cu-O3A. [ABSTRACT FROM PUBLISHER]

The Editors of Medical Science Monitor wish to inform you that the above manuscript has been retracted from publication due to concerns with the credibility and originality of the study, the manuscript content, and the Figure images. Reference: Mei Mei Guan, Qun Xian Rao, Miao Ling Huang, Li Juan Wang, Shao Dan Lin, Qing Chen, Chang Hao Liu. Long Noncoding RNA TP73-AS1 Targets MicroRNA-329-3p to Regulate Expression of the SMAD2 Gene in Human Cervical Cancer Tissue and Cell Lines. Med Sci Monit, 2019; 25: 8131-8141. DOI: 10.12659/MSM.916292.

In the title complex, [Zn(C(7)H(6)NO(2))(2)(C(10)H(8)N(2))], the Zn(II) cation is coordinated by two amino-benzoate anions and one 2,2'-bipyridine ligand in a distorted trigonal-bipyramidal geometry. The carboxyl-ate group of one aminobenzoate anion coordinates to the Zn(II) cation in a monodentate manner, whereas the carboxyl-ate group of the other amino-benzoate anion chelates the Zn cation with different Zn-O bond lengths. Inter-molecular N-H⋯N and N-H⋯O hydrogen bonding is present in the crystal structure.

In the title compound, C(14)H(13)NO(4)S·0.5C(10)H(8)N(2), the two benzene rings are nearly perpendicular to each other [dihedral angle = 83.21 (10)°]. The bipyridine mol-ecule is centrosymmetric, the mid-point of the C-C bond linking the pyridine rings being located on an inversion center. Inter-molecular N-H⋯O and O-H⋯N hydrogen bonds and weak inter-molecular C-H⋯O hydrogen bonds are present in the crystal structure.

In the title compound, C(14)H(13)NO(4)S·C(3)H(7)NO, the C-S-N-C torsion angle of -64.55 (17)° defines the folded conformation of the mol-ecule. The dihedral angle between the benzene rings is 83.367 (6)°. In a crystal, mol-ecules are linked into a chain along a axis through inter-molecular N-H⋯O and O-H⋯O hydrogen bonds. There is also an intra-molecular C-H⋯π inter-action.

In the title complex, [Cu(C(10)H(12)NO(4)S)(OH)(C(10)H(8)N(2))]·0.5H(2)O, the Cu(II) ion shows a distorted square-pyramidal coordination geometry with two N atoms from the 2,2'-bipyridine ligand and one N and one O atom from the N-tosyl-α-alaninato ligand forming the basis of the coordination polyhedron and another O atom of the hydroxo group acting as the apex of the pyramid. The solvent water mol-ecule is statistically disordered over two positions.

In the title complex, [Cu(C(9)H(9)NO(4)S)(C(12)H(8)N(2))(H(2)O)], the Cu(II) ion is coordinated in a distorted square-pyramidal geometry by the two N atoms from a 1,10-phenanthroline ligand, one N atom from the deprotonated amino group of an N-tosyl-glycinate ligand, one O atom from the carboxyl-ate part of the N-tosyl-glycinate ligand and a water O atom. Inter-molecular O-H⋯O hydrogen bonds involving the water H atoms link neighboring mol-ecules into supra-molecular chains along [010]. Weak π-π stacking inter-actions [centroid-centroid distances of 3.456 (1) and 3.691 (1) Å] between the benzene rings of 1,10-phenanthroline ligands of adjacent mol-ecules extend the chains into a layer structure parallel to (001).

The title complex, [Nd(C(6)H(6)NO(3)S)(2)(C(12)H(8)N(2))(2)(H(2)O)(3)]NO(3)·4H(2)O, comprises a mononuclear cation, an NO(3) (-) anion and two uncoordinated water mol-ecules; the Nd(III) cation, one coordinated water mol-ecule, and the NO(3) (-) anion each lie on a twofold axis of symmetry. The Nd(III) ion exhibits an NdN(4)O(5) coordination environment comprising two O atoms of two monodentate 4-amino-benzene-sulfonato ligands, four N atoms of the bidentate 1,10-phenanthroline ligands, and three water-O atoms. The coordination geometry is based on a tricapped triangular-prismatic arrangement. The components are consolidated into a three-dimensional network via O-H⋯O, O-H⋯N and N-H⋯O hydrogen-bonding inter-actions.

In the title centrosymmetric dinuclear complex, [Nd(2)(C(27)H(24)Br(3)N(4)O(3))(2)]·6C(3)H(7)NO, the Nd(III) ion is coordinated in a slightly distorted square-anti-prismatic geometry by four N atoms and four O atoms from two centrosymmetrically-related 1,3-bis-[2-(5-bromo-2-oxidobenzyl-amino)eth-yl]-2-(5-bromo-2-oxidophen-yl)-1,3-imidazolidine ligands. The Nd⋯Nd separation is 4.5012 (12) Å.

The title compound, [CuEu(2)(C(6)H(4)NO(2))(8)(H(2)O)(4)](n), displays a one-dimensional chain structure. The four-coordinate Cu(II) ion (site symmetry ) adopts a trans-CuN(2)O(2) geometry and is bridged by two carboxyl-ate groups from two isonicotinate ligands. The Eu(III) ion adopts a distorted square-anti-prismatic geometry, being coordinated by four O atoms from bridging carboxyl-ate groups of four isonicotinate ligands, two O atoms from chelating carboxyl-ate groups of one isonicotinate ligand and two O atoms from coordinated water mol-ecules; adjacent Eu(III) ions in the chain are related by inversion. The water mol-ecules interact with the ligands via O-H⋯N hydrogen bonds [O⋯O = 2.782 (3)-2.881 (3) Å], which link the chains into a three-dimensional structure.

The title complex, [Cu(2)(C(7)H(6)NO(2))(2)(C(12)H(8)N(2))(2)(H(2)O)(2)]·2C(7)H(7)NO(2)·2H(2)O, consists of a dinuclear [Cu(2)(C(7)H(6)NO(2))(2)(C(12)H(8)N(2))(2)(H(2)O)(2)](2+) cation, two Cl(-) anions, two 4-amino-benzoic acid mol-ecules and two disordered water mol-ecules (site occupancy factors 0.5). The Cu(II) ion adopts a distorted square-pyramidal geometry formed by two N atoms from the 1,10-phenanthroline ligand and two O atoms of the two 4-amino-benzoic acid ligands and one water O atom. The Cu⋯Cu separation is 3.109 (2) Å. A twofold axis passes through the mid-point of the Cu⋯Cu vector.