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@ARTICLE{Fielden:22301,
author = {Fielden, J. and Long, D.-L. and Speldrich, M. and
Kögerler, P. and Cronin, L.},
title = {[{C}ox{C}u1x({DDOP})({OH}2)({NO}3)]({NO}3): hydrogen
bond-driven distortion of cobalt({II}) by solid solution
‘network mismatch’},
journal = {Dalton transactions},
volume = {41},
issn = {1477-9226},
address = {London},
publisher = {Soc.},
reportid = {PreJuSER-22301},
pages = {4927 - 4934},
year = {2012},
note = {We thank Claire Besson for suggesting use of the
bond-valence method, Georg Seeber for X-ray diffraction data
for compound 2, Kevin Lamberts for X-ray diffraction data on
the additional solid solutions (ESI) and Geoff Cooper for
re-synthesis of 4. JF and DL both acknowledge the EPSRC for
funding.},
abstract = {Late-first row transition metal nitrate complexes of the
tetradentate N-donor ligand
cis-3,5-bis[(2-pyridinyleneamino]-trans-hydroxycyclohexane
(DDOP) adopt a mono-cationic [M(DDOP)(H(2)O)(NO(3))](+)
structure (M = Co, 1; Cu, 2; Zn, 3) in which the DDOP ligand
occupies the equatorial plane. The complexes are essentially
isostructural and isomorphous, allowing the Co(II) and
Cu(II) complexes to co-crystallize in mixed-metal solid
solutions with the formula
[Co(x)Cu(1-x)(DDOP)(NO(3))(H(2)O)](NO(3)), where x = 0.4
(4), 0.1 (5), and 0.7 (6). For 4, structural and
magnetochemical analysis indicate that the geometry of the
octahedral Co(II) complex distorts to match that of the
dominant Jahn-Teller distorted Cu(II) center. Magnetic
susceptibility data of octahedral Co(II) are sensitive to
ligand geometry distortions and have been analyzed
accordingly, comparing 4 to the reference systems 1 and 2.
Bond valence calculations have been used to estimate the
relative stabilities of the six hydrogen bonded networks,
suggesting that the stretching of the Co(II) coordination
sphere 4 in is assisted by adoption of the most stable
hydrogen bonded network; but that in 6 this is overcome by a
higher loading of Co. This family of complexes therefore
represent predictable metal-based tectons which can help
probe the influence of secondary non-covalent interactions
over metal coordination geometries and properties.},
keywords = {J (WoSType)},
cin = {PGI-6},
ddc = {540},
cid = {I:(DE-Juel1)PGI-6-20110106},
pnm = {Grundlagen für zukünftige Informationstechnologien},
pid = {G:(DE-Juel1)FUEK412},
shelfmark = {Chemistry, Inorganic $\&$ Nuclear},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:22450432},
UT = {WOS:000302023800030},
doi = {10.1039/c2dt11055e},
url = {https://juser.fz-juelich.de/record/22301},
}