scholarly journals NMR Determination of Amide N−H Equilibrium Bond Length from Concerted Dipolar Coupling Measurements

2008 ◽  
Vol 130 (49) ◽  
pp. 16518-16520 ◽  
Author(s):  
Lishan Yao ◽  
Beat Vögeli ◽  
Jinfa Ying ◽  
Ad Bax
Keyword(s):  
Bond Length ◽  
Dipolar Coupling ◽  
Equilibrium Bond Length

scholarly journals Theoretical Study and X-ray Determination of Bianthrones:  Long C−C Bond Length and Preferred Gauche Conformation

2003 ◽  
Vol 68 (6) ◽  
pp. 2528-2528
Author(s):  
Pai-Chi Li ◽  
Tsung-Shing Wang ◽  
Gen-Hsian Lee ◽  
Yi-Hong Liu ◽  
Yu Wang ◽  
...  
Keyword(s):  
Bond Length ◽  
Theoretical Study ◽  
Gauche Conformation ◽  
X Ray

scholarly journals Theoretical Study and X-ray Determination of Bianthrones:  Long C−C Bond Length and Preferred Gauche Conformation

2002 ◽  
Vol 67 (23) ◽  
pp. 8002-8009 ◽  
Author(s):  
Pai-Chi Li ◽  
Tsung-Shing Wang ◽  
Gen-Hsian Lee ◽  
Yi-Hong Liu ◽  
Yu Wang ◽  
...  
Keyword(s):  
Bond Length ◽  
Theoretical Study ◽  
Gauche Conformation ◽  
X Ray

Determination of the I[sub 2] bond-length distribution in liquid, solid and solution, by extended x-ray absorption fine structure spectroscopy

1997 ◽  
Vol 107 (15) ◽  
pp. 5720 ◽  
Author(s):  
U. Buontempo ◽  
A. Di Cicco ◽  
A. Filipponi ◽  
M. Nardone ◽  
P. Postorino
Keyword(s):  
Fine Structure ◽  
Bond Length ◽  
Length Distribution ◽  
X Ray ◽  
Absorption Fine ◽  
X Ray Absorption ◽  
Bond Length Distribution

Determination of carbon-carbon bond length from the absorption spectra of cyanine dyes

1991 ◽  
Vol 68 (6) ◽  
pp. 506 ◽  
Author(s):  
Richard S. Moog
Keyword(s):  
Bond Length ◽  
Absorption Spectra ◽  
Cyanine Dyes ◽  
Carbon Bond ◽  
Carbon Carbon Bond

scholarly journals Metallation of Isatin (2,3-Indolinedione). X-Ray Structure and Solution Behavior of Bis(Isatinato)Mercury(II)

1995 ◽  
Vol 2 (2) ◽  
pp. 81-90 ◽  
Author(s):  
Angel Garcia-Raso ◽  
Juan J. Fiol ◽  
Elies Molins ◽  
Antonia M. Calafat ◽  
Patricia A. Marzilli ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Solid State ◽  
Metal Complex ◽  
Bond Length ◽  
Spectral Data ◽  
Structure Determination ◽  
Monoclinic System ◽  
Heterocyclic Nitrogen ◽  
X Ray

The first X-ray structure of an isatin (2,3-indolinedione, isaH) metal complex, bis(isatinato)memury(II) (C16H8N2O4Hg) (1), was determined. (1) was obtained from the reaction of isaH with mercury(II) acetate in methanol. Analogously, treatment of sodium saccharinate and mercury(II) acetate in methanol yielded Hg(saccharinato)2•0.5CH3OH (3). (1) crystallizes in the monoclinic system, space group P21/a with a = 7.299(1) Å, b = 8.192(1) Å, c = 11.601(1) Å , β = 105.82(1)°, V = 667.4 Å3, Z = 2, Dcalc = 2.452 g cm−3, MoKα radiation(λ = 0.71073 Å), μ = 115.5 cm-1, F(000) = 460, 21(1) °C. The structure was refined on the basis of 2023 observed reflections to R= 0.044. The two deprotonated, non coplanar isa ligands are trans to each other in a head to tail orientation and bound to the Hg through the nitrogen in a linear N-Hg-N arrangement. The Hg atom is at the center of symmetry of the complex and displaced by 0.62 Å from the two planes of the isa ligands (τ Hg-N1-C2-O2= -16°). The Hg-N bond length is 2.015 Å. Noπ-aryl-memury(ll)-π-aryl stacking interaction was observed either in the solid state or in the solution state. The IR, electronic, and H1 and C13NMR spectral data of (1) and (3) suggest binding of the memury to the heterocyclic nitrogen, in agreement with the crystal structure determination of (1).

Determination of the central bond length in hexaarylethanes by nutation NMR spectroscopy

1988 ◽  
Vol 110 (20) ◽  
pp. 6670-6672 ◽  
Author(s):  
Nino. Yannoni ◽  
Bart. Kahr ◽  
Kurt. Mislow
Keyword(s):  
Nmr Spectroscopy ◽  
Bond Length ◽  
Central Bond

Determination of Nanoparticle Size by Measuring the Metal–Metal Bond Length: The Case of Palladium Hydride

2014 ◽  
Vol 119 (1) ◽  
pp. 854-861 ◽  
Author(s):  
Jianqiang Wang ◽  
Qi Wang ◽  
Xinghua Jiang ◽  
Zhongneng Liu ◽  
Weimin Yang ◽  
...  
Keyword(s):  
Bond Length ◽  
Nanoparticle Size ◽  
Palladium Hydride ◽  
Metal Bond ◽  
Metal Metal

Das Anion [R2Al-AlR2Br]- (R = CH(SiMe3)2) mit Aluminium-Aluminium- und terminaler Aluminium-Brom-Bindung / The Anion [R2Al-AlR2Br]- (R = CH(SiMe3)2) with an Aluminium -Aluminium and a Terminal Aluminium -Bromine Bond

1994 ◽  
Vol 49 (5) ◽  
pp. 637-641 ◽  
Author(s):  
Werner Uhl ◽  
Uwe Schütz ◽  
Siegfried Pohl ◽  
Wolfgang Saak
Keyword(s):  
Crystal Structure ◽  
Bond Length ◽  
Structure Determination ◽  
Crystal Structure Determination ◽  
Aluminium Atom ◽  
Ethereal Solution ◽  
Quantitative Formation ◽  
Starting Compound

Tetrakis[bis(trimethylsilyl)methyl]dialane(4) (1) with an Al-Al bond reacts with LiBr in n-pentane in the presence of chelating N.N.N'.N'-tetramethylethylenediamine (TMEDA) to yield the monobromo adduct [Li(TMEDA)2]+[R2Al-AlR2Br]- 4. Compound 4 is unstable in ethereal solution and decomposes with quantitative formation of LiBr and the starting compound 1. Crystal structure determination of 4 C5H10 shows a terminal Al-Br bond in an anion with a four-coordinated aluminium atom neighbouring a three-coordinated, coordinatively unsaturated aluminium atom. While the Al-Al bond length is not significantly different (264.3 pm) as compared to the data for 1, the Al-Br bond is rather long (247.6 pm) indicating a weak coordinative bonding.

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