Interpreting the electronic structure of the hydrogen-bridge bond in B2H6 through a hypothetical reaction

2011 ◽  
Vol 23 (2) ◽  
pp. 525-527 ◽  
Author(s):  
Rongbao Liao
Keyword(s):  
Electronic Structure ◽  
Hydrogen Bridge ◽  
Bridge Bond ◽  
Hypothetical Reaction

scholarly journals A cyclic voltammetric study of the influence of supporting electrolytes on the redox behaviour of Cu(II) in aqueous medium

1970 ◽  
Vol 24 (2) ◽  
pp. 158-164 ◽  
Author(s):  
Aftab Ali Shaikh ◽  
M Badrunnessa ◽  
Jannatul Firdaws ◽  
Md Shahidur Rahman ◽  
Nishat Ahmed Pasha ◽  
...  
Keyword(s):  
Aqueous Medium ◽  
Electrochemical Reaction ◽  
Supporting Electrolyte ◽  
Electrode Reaction ◽  
Chemical Society ◽  
Reduction Peak ◽  
Hydrogen Bridge ◽  
Peak Current ◽  
Bridge Bond ◽  
Electrochemical Redox

The electrochemical redox behavior of Cu(II) has been investigated at glassy carbon electrode (GCE) in Britton-Robinson (BR) buffer as well as in a mixture of BR buffer and potassium chloride media. It is apparent that BR buffer can act as a supporting electrolyte and modify the electrochemical behavior of Cu(II) ion in aqueous medium. In BR buffer medium, Cu(II) undergoes one two-electrons redox process, while in a mixture of BR buffer and KCl media it follows two one-electron electrochemical reaction routes. Because of the formation of hydrogen bridge bond between the supporting electrolyte and GCE surface, the Cu(II) ion follows Cu(II)/Cu(0) electrochemical reaction path, while in presence of KCl such a hydrogen bridge bond is not formed and it undergoes successive Cu(II)/Cu(I) and Cu(I)/Cu(0) electrode reaction processes. Moreover, the linear variation of peak current with the square root of scan rate indicates that the electrochemical redox processes are diffusion controlled. Keywords: Supporting electrolytes; Britton-Robinson buffer; Cu-reduction; Peak current DOI: http://dx.doi.org/10.3329/jbcs.v24i2.9704 Journal of Bangladesh Chemical Society, Vol. 24(2), 158-164, 2011

I4N Quadrupole Coupling in the Rotational Spectra of 2,2,2-Trifiuoroethylamine. Isopropylamine, and Aminoethanole

1991 ◽  
Vol 46 (6) ◽  
pp. 527-534 ◽  
Author(s):  
Ch. Keussen ◽  
H. Dreizler
Keyword(s):  
Fourier Transform ◽  
High Resolution ◽  
Hyperfine Structure ◽  
Coupling Constants ◽  
Hydrogen Bridge ◽  
Bridge Bond ◽  
Rotational Spectra ◽  
Distinct Effect ◽  
Coupling Tensor ◽  
Quadrupole Coupling

Abstract We utilized the high resolution of microwave Fourier transform spectroscopy to investigate the 14N-hyperfine structure of trans-2,2,2-trifluoroethylamine, CF3CH2NH2, trans-isopropylamine, CH3CHNH2CH3, and aminoethanole, HOCH2CH2NH2, and the amino deuterated isotopomers trifluoroethylamine-d2 and isopropylamine-d2. The complete coupling tensor of trifluoroethylamine could be determined. We found that the fluorine atoms have a distinct effect on the nitrogen electronic surrounding of the named molecule, presumably through a hydrogen bridge bond between two of these atoms and the amino protons. For isopropylamine and aminoethanole wrong values of the coupling constants known in the literature could be corrected

X-ray and neutron diffraction studies on .lambda.-hydrido-octacarbonyl(nitrosyl)(trimethyl phosphite)ditungsten. A compound with a slightly asymmetric hydrogen bridge bond

1976 ◽  
Vol 98 (15) ◽  
pp. 4491-4498 ◽  
Author(s):  
Richard A. Love ◽  
Henry B. Chin ◽  
Thomas F. Koetzle ◽  
Stephen W. Kirtley ◽  
Bruce R. Whittlesey ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Trimethyl Phosphite ◽  
Hydrogen Bridge ◽  
Bridge Bond ◽  
X Ray

ChemInform Abstract: X-RAY AND NEUTRON DIFFRACTION STUDIES ON Λ-HYDRIDO-OCTACARBONYL(NITROSYL)(TRIMETHYL PHOSPHITE)DITUNGSTEN. A COMPOUND WITH A SLIGHTLY ASYMMETRIC HYDROGEN BRIDGE BOND

1976 ◽  
Vol 7 (42) ◽  
pp. no-no
Author(s):  
RICHARD A. LOVE ◽  
HENRY B. CHIN ◽  
THOMAS F. KOETZLE ◽  
STEPHEN W. KIRTLEY ◽  
BRUCE R. WHITTLESEY ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Trimethyl Phosphite ◽  
Hydrogen Bridge ◽  
Bridge Bond ◽  
X Ray

Heuristic Considerations Suggesting a Role for Electron Pairing in Thermodynamically Consistent Pathways of Enzyme Catalysis

1978 ◽  
Vol 33 (10) ◽  
pp. 1206-1209 ◽  
Author(s):  
Michael Conrad
Keyword(s):  
Electronic Structure ◽  
Reaction Mechanism ◽  
Complex Formation ◽  
Enzyme Catalysis ◽  
Pairing Interaction ◽  
Electron Pairing ◽  
Hypothetical Reaction

Abstract Nuclear motions accompanying enzyme catalysis are described in terms of a hypothetical reaction mechanism in which instabilities of electronic structure arise from short-lived pairing resonances of parallel spin electrons. A pairing interaction is proposed which has its basis in confinement constraints imposed by complex formation.

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