The Role of the Second Coordination Sphere of [Ni(PCy2NBz2)2](BF4)2in Reversible Carbon Monoxide Binding

2008 ◽  
Vol 130 (3) ◽  
pp. 1061-1068 ◽  
Author(s):  
Aaron D. Wilson ◽  
Kendra Fraze ◽  
Brendan Twamley ◽  
Susie M. Miller ◽  
Daniel L. DuBois ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Coordination Sphere ◽  
Carbon Monoxide Binding ◽  
Second Coordination Sphere

Structure of the Second Coordination Sphere of Transition Metal Complexes. II. Substituted Anilines as Ligands

1971 ◽  
Vol 49 (8) ◽  
pp. 1218-1223 ◽  
Author(s):  
D. R. Eaton ◽  
H. O. Ohorodnyk ◽  
Linda Seville
Keyword(s):  
Coordination Sphere ◽  
Methylene Chloride ◽  
Chemical Shifts ◽  
Cobalt Complex ◽  
Cobalt Atom ◽  
Amino Group ◽  
Substituted Anilines ◽  
Second Coordination Sphere ◽  
Solvent Molecules

The role of substituted anilines as second coordination sphere ligands of cobalt(II) complexes has been investigated. Chemical shifts of the ligand nuclear magnetic resonance (n.m.r.) spectra arising from pseudo-contact interaction with the paramagnetic cobalt complex have been utilized for this purpose. It has been found that in each case the aniline preferentially occupies a position perpendicular to the three fold symmetry axis of the complex and tends to be aligned with the amino group directed towards the cobalt atom. Electron withdrawing substituents para to the amino group enhance the second coordination sphere binding and electron donating substituents diminish it. These results are consistent with the idea that the structure of the second coordination sphere is determined by electrostatic interaction with the negatively charged ligands comprising the first coordination sphere. There is competition between aniline molecules and solvent molecules for a position in the second sphere with the solvent competing with increasing effectiveness in the series carbon tetrachloride, benzene, and methylene chloride.

Different Modes of Carbon Monoxide Binding to Acetyl-CoA Synthase and the Role of a Conserved Phenylalanine in the Coordination Environment of Nickel

Biochemistry ◽  
2013 ◽  
Vol 52 (10) ◽  
pp. 1705-1716 ◽  
Author(s):  
Simonida Gencic ◽  
Kayla Kelly ◽  
Selamawit Ghebreamlak ◽  
Evert C. Duin ◽  
David A. Grahame
Keyword(s):  
Carbon Monoxide ◽  
Acetyl Coa ◽  
Coordination Environment ◽  
Carbon Monoxide Binding

Role of Amino Acid Residues for Dioxygen Activation in the Second Coordination Sphere of the Dicopper Site of pMMO

2019 ◽  
Vol 58 (18) ◽  
pp. 12280-12288 ◽  
Author(s):  
Mayuko Miyanishi ◽  
Tsukasa Abe ◽  
Yuta Hori ◽  
Yoshihito Shiota ◽  
Kazunari Yoshizawa
Keyword(s):  
Amino Acid ◽  
Coordination Sphere ◽  
Dioxygen Activation ◽  
Amino Acid Residues ◽  
Second Coordination Sphere

scholarly journals Kinetics of carbon monoxide binding to monomeric hemoproteins. Role of the proximal histidine.

1985 ◽  
Vol 260 (7) ◽  
pp. 4151-4155 ◽  
Author(s):  
M Coletta ◽  
P Ascenzi ◽  
T G Traylor ◽  
M Brunori
Keyword(s):  
Carbon Monoxide ◽  
Carbon Monoxide Binding ◽  
Kinetics Of

scholarly journals Role of copper during carbon monoxide binding to terminal oxidases

FEBS Letters ◽  
1998 ◽  
Vol 429 (2) ◽  
pp. 216-220 ◽  
Author(s):  
Maria S Muntyan ◽  
Bernd Ludwig ◽  
Irmela Zickermann ◽  
Nataliya P Starshinova
Keyword(s):  
Carbon Monoxide ◽  
Terminal Oxidases ◽  
Carbon Monoxide Binding

scholarly journals The reactivity of molecular oxygen and reactive oxygen species with [FeFe] hydrogenase biomimetics: reversibility and the role of the second coordination sphere

2020 ◽  
Vol 49 (3) ◽  
pp. 858-865 ◽  
Author(s):  
Vincent C.-C. Wang ◽  
Charlène Esmieu ◽  
Holly J. Redman ◽  
Gustav Berggren ◽  
Leif Hammarström
Keyword(s):  
Reactive Oxygen Species ◽  
Molecular Oxygen ◽  
Coordination Sphere ◽  
Reactive Oxygen ◽  
Oxygen Species ◽  
Second Coordination Sphere

A new one-electron reduced and oxygenated species from H2-evolving complexes, inspired by [FeFe] hydrogenase, was prepared by directly reacting with O2 and chemical reductants. Its structure and reactivity were investigated by spectroscopic tools.

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