Journal ArticleDOI
Binding and activation of enzymic substrates by metal complexes. 4. Structural evidence for acetylene as a four-electron donor in carbonylacetylenebis(diethyldithiocarbamate)tungsten
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Eine CH, Cl2-Losung von Bis1[N,N-diethyldithiocarbamato]-dicarbonyl-triphenylphosphin wolfram reagiert in reiner Acetylenatmosphare zu der diamagnetischen Titelverbindung (I), die durch IR-, NMR-and sichtbares Elektronenspektrum charakterisiert wurde.Abstract:
Eine CH, Cl2-Losung von Bis1[N,N-diethyldithiocarbamato]-dicarbonyl-triphenylphosphinwolfram reagiert in reiner Acetylenatmosphare zu der diamagnetischen Titelverbindung (I), die durch IR-, NMR- und sichtbares Elektronenspektrum charakterisiert wurde.read more
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Book ChapterDOI
Four-electron alkyne ligands in molybdenum(II) and tungsten(II) complexes
TL;DR: In this paper, the authors explore the use of the term "four-electron donor" to describe the alkyne ligand in circumstances where alkne π ⊥ donation supplements classic metal-olefin bonding.
Journal ArticleDOI
Bioinorganic chemistry of molybdenum and tungsten enzymes: A structural–functional modeling approach
Amit Majumdar,Sabyasachi Sarkar +1 more
TL;DR: The protocols and methodologies adopted to achieve these model systems compared with various other model systems described in this review give testimony to chemist's ability, through chemical manipulations, to achieve the models which may potentially serve as structural–functional mimics of natural enzyme systems.
Journal ArticleDOI
Charge-displacement analysis via natural orbitals for chemical valence: charge transfer effects in coordination chemistry.
TL;DR: A general scheme for disentangling donation and back-donation in the CD function of both symmetric and non-symmetric systems is presented and illustrated through applications to M-ethyne (M = Au, Ni and W) coordination bonds, including an explicative study on substrate activation in a model reaction mechanism.
Journal ArticleDOI
Poly(azolyl) chelate chemistry 14.[1] κ 2 - S , S ′ vs κ 3 -H, S , S ′- H 2 B(mt) 2 (mt=methimazolyl)borate coordination in the complex [W(CO){H 2 B(mt) 2 } 2 ]
TL;DR: The reactions of [M( CC6H2Me3-2,4,6)X(CO)2(L)2] with Na[H2B(mt)2], (mt ǫ=methimazolyl) are metal dependent as mentioned in this paper.