Advanced

Bis(benzimidazolyl)amine copper complexes with a synthetic 'histidine brace' structural motif relevant to polysaccharide monooxygenases

Castillo, Ivan; Neira, Andrea C.; Nordlander, Ebbe LU and Zeglio, Erica (2014) In Inorganica Chimica Acta 422. p.152-157
Abstract
Reaction of Cu2+ salts with the benzimidazole-N-methylated bis[(1-methyl-2-benzimidazolyl)ethyl]amine ligand 2BB results in either bi- or monometallic complexes. Spectroscopic and solid state characterization reveals either square pyramidal or trigonal bipyramidal coordination geometries around the cupric ions. In [{2BBCu(mu-F)}(2)](BF4)(2), the dicopper structure is determined by the bridging nature of the fluoro ligands, which complement the T-shape arrangement of N-3 donors provided by 2BB to define a square pyramidal (or capped distorted tetrahedral) coordination geometry. The monocopper complexes 2BBCuCl(2) and [2BBCu(H2O)(2)](OTf)(2) are characterized by a trigonal bipyramidal geometry both in solution and in the solid state. In all... (More)
Reaction of Cu2+ salts with the benzimidazole-N-methylated bis[(1-methyl-2-benzimidazolyl)ethyl]amine ligand 2BB results in either bi- or monometallic complexes. Spectroscopic and solid state characterization reveals either square pyramidal or trigonal bipyramidal coordination geometries around the cupric ions. In [{2BBCu(mu-F)}(2)](BF4)(2), the dicopper structure is determined by the bridging nature of the fluoro ligands, which complement the T-shape arrangement of N-3 donors provided by 2BB to define a square pyramidal (or capped distorted tetrahedral) coordination geometry. The monocopper complexes 2BBCuCl(2) and [2BBCu(H2O)(2)](OTf)(2) are characterized by a trigonal bipyramidal geometry both in solution and in the solid state. In all complexes, the T-shape N-3 donor set of 2BB is analogous to the coordination environment of the copper ions provided by a 'histidine brace' and an additional histidine imidazole in the active site of polysaccharide monooxygenases. (C) 2014 Elsevier B. V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Copper complexes, Benzimidazoles, X-ray crystal structures, Tridentate, ligands
in
Inorganica Chimica Acta
volume
422
pages
152 - 157
publisher
Elsevier
external identifiers
  • wos:000343585800023
  • scopus:84907991830
ISSN
0020-1693
DOI
10.1016/j.ica.2014.06.027
language
English
LU publication?
yes
id
bc7d966d-d95a-4585-8245-cf22130f3db0 (old id 4783728)
date added to LUP
2014-11-21 10:30:07
date last changed
2017-02-26 03:46:45
@article{bc7d966d-d95a-4585-8245-cf22130f3db0,
  abstract     = {Reaction of Cu2+ salts with the benzimidazole-N-methylated bis[(1-methyl-2-benzimidazolyl)ethyl]amine ligand 2BB results in either bi- or monometallic complexes. Spectroscopic and solid state characterization reveals either square pyramidal or trigonal bipyramidal coordination geometries around the cupric ions. In [{2BBCu(mu-F)}(2)](BF4)(2), the dicopper structure is determined by the bridging nature of the fluoro ligands, which complement the T-shape arrangement of N-3 donors provided by 2BB to define a square pyramidal (or capped distorted tetrahedral) coordination geometry. The monocopper complexes 2BBCuCl(2) and [2BBCu(H2O)(2)](OTf)(2) are characterized by a trigonal bipyramidal geometry both in solution and in the solid state. In all complexes, the T-shape N-3 donor set of 2BB is analogous to the coordination environment of the copper ions provided by a 'histidine brace' and an additional histidine imidazole in the active site of polysaccharide monooxygenases. (C) 2014 Elsevier B. V. All rights reserved.},
  author       = {Castillo, Ivan and Neira, Andrea C. and Nordlander, Ebbe and Zeglio, Erica},
  issn         = {0020-1693},
  keyword      = {Copper complexes,Benzimidazoles,X-ray crystal structures,Tridentate,ligands},
  language     = {eng},
  pages        = {152--157},
  publisher    = {Elsevier},
  series       = {Inorganica Chimica Acta},
  title        = {Bis(benzimidazolyl)amine copper complexes with a synthetic 'histidine brace' structural motif relevant to polysaccharide monooxygenases},
  url          = {http://dx.doi.org/10.1016/j.ica.2014.06.027},
  volume       = {422},
  year         = {2014},
}