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Your search keyword '"Favero, Laura B."' showing total 6 results
Start Over Author "Favero, Laura B." Topic hydrogen bonds
6 results on '"Favero, Laura B."'

1. The Cage Structure of IndanCHF(3) is Based on the Cooperative Effects of C-H center dot center dot center dot pi and C-H center dot center dot center dot F Weak Hydrogen Bonds

Author

Favero, Laura B., Li, Weixing, Spada, Lorenzo, Evangelisti, Luca, Visentin, Giorgio, and Caminati, Walther

Subjects
rotational spectroscopy, hydrogen bonds, Ubbelohde effect, molecular dynamics, pulsed jets
Abstract

The structural and energetic features of the CH interaction and the internal dynamics of the CHF3 group change drastically in going from benzeneCHF(3) to indanCHF(3), according to the analysis of the rotational spectrum of the latter complex generated in a supersonic expansion.

Published
2015

2. Interactions between Ketones and Alcohols: Rotational Spectrum and Internal Dynamics of the Acetone-Ethanol Complex.

Author

Gou, Qian, Favero, Laura B., Feng, Gang, Evangelisti, Luca, Pérez, Cristóbal, and Caminati, Walther

Subjects
*ACETONE, *KETONES, *ISOTOPOLOGUES, *FOURIER transform infrared spectroscopy, *HYDROGEN bonding
Abstract

The rotational spectra of two isotopologues of the 1:1 complex formed between acetone and ethanol have been recorded and analyzed by using Fourier-transform microwave spectroscopy. One rotamer was detected, in which ethanol adopts the gauche form. The two subunits are linked by a conventional O−H⋅⋅⋅O and a weak C−H⋅⋅⋅O hydrogen bond, forming a six-membered ring. Each rotational transition is split into five component lines due to the internal rotations of two nonequivalent acetone methyl groups. The V3 barriers to internal rotation of the two CH3 tops of acetone were determined to be 252(4) and 220(1) cm−1, which are noticeably lower than the value for the monomer (266 cm−1). [ABSTRACT FROM AUTHOR]

Published
2017
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3. The Cage Structure of IndanCHF3 is Based on the Cooperative Effects of CH⋅⋅⋅π and CH⋅⋅⋅F Weak Hydrogen Bonds.

Author

Favero, Laura B., Li, Weixing, Spada, Lorenzo, Evangelisti, Luca, Visentin, Giorgio, and Caminati, Walther

Subjects
*HYDROGEN bonding, *CARBON-hydrogen bonds, *BENZENE, *ULTRASONICS, *INFRARED spectroscopy
Abstract

The structural and energetic features of the CH⋅⋅⋅π interaction and the internal dynamics of the CHF3 group change drastically in going from benzeneCHF3 to indanCHF3, according to the analysis of the rotational spectrum of the latter complex generated in a supersonic expansion. [ABSTRACT FROM AUTHOR]

Published
2015
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4. Shapes and Internal Dynamics of the 1:1 Adducts of Ammonia with trans and gauche Ethanol: A Rotational Study.

Author

Giuliano, Barbara M., Favero, Laura B., Maris, Assimo, and Caminati, Walther

Abstract

Two 1:1 adducts of ammonia with ethanol have been characterized by using pulsed-jet FT microwave spectroscopy. They are formed with two different ( trans and gauche), stable conformers of ethanol. Several internal-dynamics effects are reflected in the features of the rotational spectra. The trans complex shows the tunneling effects owing to internal rotation of both ammonia and the methyl group. The rotational transitions of the gauche species exhibit a small splitting that is related to tunneling through the potential-energy barrier between the two equivalent minima. [ABSTRACT FROM AUTHOR]

Published
2012
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5. Interactions between Ketones and Alcohols: Rotational Spectrum and Internal Dynamics of the Acetone-Ethanol Complex

Author

Gou, Favero, L.B., Feng, Evangelisti, Perez, Caminati, Gou, Qian, Favero, Laura B., Feng, Gang, Evangelisti, Luca, Pã©rez, Cristã³bal, and Caminati, Walther

Subjects
Rotational transition, acetone, 02 engineering and technology, 010402 general chemistry, Ring (chemistry), Photochemistry, 01 natural sciences, Catalysis, chemistry.chemical_compound, rotational spectroscopy, Acetone, Isotopologue, Conformational isomerism, hydrogen bond, Hydrogen bond, molecular dynamic, Organic Chemistry, Chemistry (all), General Chemistry, 021001 nanoscience & nanotechnology, molecular dynamics, 0104 chemical sciences, Monomer, chemistry, hydrogen bonds, Physical chemistry, Rotational spectroscopy, ethanol, 0210 nano-technology
Abstract

The rotational spectra of two isotopologues of the 1:1 complex formed between acetone and ethanol have been recorded and analyzed by using Fourier-transform microwave spectroscopy. One rotamer was detected, in which ethanol adopts the gauche form. The two subunits are linked by a conventional O−H⋅⋅⋅O and a weak C−H⋅⋅⋅O hydrogen bond, forming a six-membered ring. Each rotational transition is split into five component lines due to the internal rotations of two nonequivalent acetone methyl groups. The V3 barriers to internal rotation of the two CH3 tops of acetone were determined to be 252(4) and 220(1) cm−1, which are noticeably lower than the value for the monomer (266 cm−1).

Published
2017

6. The Cage Structure of Indan-CHF3 is Based on the Cooperative Effects of C-H⋅⋅⋅π and C-H⋅⋅⋅F Weak Hydrogen Bonds

Author

Walther Caminati, Laura B. Favero, Luca Evangelisti, Giorgio Visentin, Weixing Li, Lorenzo Spada, Favero, Laura B., Li, Weixing, Spada, Lorenzo, Evangelisti, Luca, Visentin, Giorgio, Caminati, Walther, Favero, L.B., Li, W., Spada, L., Evangelisti, L., Visentin, G., Caminati, W., DIPARTIMENTO DI CHIMICA 'GIACOMO CIAMICIAN', Facolta' di SCIENZE MATEMATICHE FISICHE e NATURALI, AREA MIN. 03 - Scienze chimiche, and Da definire

Subjects
hydrogen bond, Chemistry, Hydrogen bond, molecular dynamic, Organic Chemistry, Chemistry (all), Structure (category theory), Ubbelohde effect, General Chemistry, hydrogen bonds, molecular dynamics, pulsed jets, rotational spectroscopy, Catalysis, Crystallography, Molecular dynamics, Group (periodic table), Rotational spectrum, pulsed jet, Supersonic speed, Rotational spectroscopy, Cage
Abstract

none 6 no The structural and energetic features of the CH⋅⋅⋅π interaction and the internal dynamics of the CHF3 group change drastically in going from benzeneCHF3 to indanCHF3 , according to the analysis of the rotational spectrum of the latter complex generated in a supersonic expansion. Favero, L.B.; Li, W.; Spada, L.; Evangelisti, L.; Visentin, G.; Caminati, W. Favero, L.B.; Li, W.; Spada, L.; Evangelisti, L.; Visentin, G.; Caminati, W.

Published
2015

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