Další formáty:
BibTeX
LaTeX
RIS
@article{203307,
author = {Pinkas, Jiří and Huffman, J. C. and Chisholm, M. H. and Caulton, K. G.},
article_location = {Spojené státy americké},
article_number = {21},
keywords = {MOLECULAR-STRUCTURES; COMPLEXES; CRYSTAL},
language = {eng},
issn = {0020-1669},
journal = {Inorg. Chem.},
title = {Origin of Different Coordination Polyhedra for Cu[CF3C(O)CHC(O)CF3]2L, (L = H2O, NH3)},
volume = {34},
year = {1995}
}
TY - JOUR
ID - 203307
AU - Pinkas, Jiří - Huffman, J. C. - Chisholm, M. H. - Caulton, K. G.
PY - 1995
TI - Origin of Different Coordination Polyhedra for Cu[CF3C(O)CHC(O)CF3]2L, (L = H2O, NH3)
JF - Inorg. Chem.
VL - 34
IS - 21
SP - 5314
EP - 5314
PB - American Chemical Society, Washington DC
SN - 00201669
KW - MOLECULAR-STRUCTURES
KW - COMPLEXES
KW - CRYSTAL
N2 - Cu(hfacac)(2)(NH3) (hfacac = CF3C(O)CHC(O)CF3-) is shown to have a trigonal-bipyramidal structure with Cu-O (axial) = 1.945(3) Angstrom, Cu-O (equatorial) = 2.075(3) Angstrom and Cu-N = 1.933(6) Angstrom. This contrasts with the square-pyramidal structure of Cu(hfacac)(2)(H2O), which has a long (2.204(3) Angstrom) Cu-OH2 bond. The ammine complex retains its NH3 ligand upon vacuum sublimation, while the H2O complex loses water. The difference in coordination geometry and Cu-L distance (L = H2O, NH3) is traced to minimizing a antibonding interactions with the stronger ligand L, which, by the criterion of 10Dq, is NH3. Crystal data (-67 degrees C): a = 20.594(6) Angstrom, b = 8.881(2) Angstrom, c = 8.619(2) Angstrom, beta = 104.49(1)degrees with Z = 4 in space group C2/c.
ER -
PINKAS, Jiří, J. C. HUFFMAN, M. H. CHISHOLM a K. G. CAULTON. Origin of Different Coordination Polyhedra for Cu[CF3C(O)CHC(O)CF3]2L, (L = H2O, NH3). \textit{Inorg. Chem.}. Spojené státy americké: American Chemical Society, Washington DC, 1995, roč.~34, č.~21, s.~5314-5318. ISSN~0020-1669.
|
