Structure of a Monocarboxylic Acid Derivative of Vitamin B12: Crystal and Molecular Structure from Neutron Diffraction Analysis

Nature ◽  
1967 ◽  
Vol 214 (5084) ◽  
pp. 130-133 ◽  
Author(s):  
F. M. MOORE ◽  
B. T. M. WILLIS ◽  
DOROTHY CROWFOOT HODGKIN
Keyword(s):  
Molecular Structure ◽  
Neutron Diffraction ◽  
Vitamin B12 ◽  
Diffraction Analysis ◽  
Acid Derivative ◽  
Crystal And Molecular Structure ◽  
Monocarboxylic Acid ◽  
Neutron Diffraction Analysis

Structure of a Monocarboxylic Acid Derivative of Vitamin B12: Crystal and Molecular Structure from X-ray Analysis

Nature ◽  
1967 ◽  
Vol 214 (5084) ◽  
pp. 129-130 ◽  
Author(s):  
C. K. NOCKOLDS ◽  
T. N. M. WATERS ◽  
S. RAMASESHAN ◽  
J. M. WATERS ◽  
DOROTHY CROWFOOT HODGKIN
Keyword(s):  
Molecular Structure ◽  
Vitamin B12 ◽  
Acid Derivative ◽  
Crystal And Molecular Structure ◽  
Monocarboxylic Acid ◽  
X Ray

scholarly journals The Classical Structure of TaCp2(H)(SiMe2H)2

1999 ◽  
Vol 23 (1) ◽  
pp. 14-15
Author(s):  
Ichiro Tanaka ◽  
Takashi Ohhara ◽  
Nobuo Niimura ◽  
Yuji Ohashi ◽  
Qian Jiang ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Diffraction Analysis ◽  
Neutron Diffraction Analysis ◽  
Classical Structure ◽  
R Factor ◽  
Symmetric Structure ◽  
Hydride Ligand

Neutron diffraction analysis of TaCp2(H)(SiMe2H)2 (1) has revealed a symmetric structure with a classical, rather than agostic, hydride ligand: the Ta–H distance is 1.785(15) Å, the non-bonding H···Si distances are 2.189(18) and 2.190(17) Å, and the H–Ta–Si angles are 55.2(5) and 55.5(5)°; final R factor = 8.9% for 1295 reflections.

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