1984
DOI: 10.1016/s0020-1693(00)80747-1
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Mononuclear and polynuclear copper complexes of some substituted hydrazones

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Cited by 22 publications
(3 citation statements)
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“…The central copper (Cu(2)) is five-coordinate with a geometry that is closer to a square-pyramid than a trigonal-bipyramid. The juxtaposition of N(4), N(5) and N (6) and the contiguous five-membered chelate ring combination that involves Cu(2), leads to a somewhat distorted bonding situation around Cu(2). The Cu(2)-N(5) distance is quite short (1.933(5) Å), but the Cu(2)-N(4) and Cu(2)-N(6) distances are much longer (2.080(5) Å and 2.141(5) Å respectively).…”
Section: Structuresmentioning
confidence: 99%
“…The central copper (Cu(2)) is five-coordinate with a geometry that is closer to a square-pyramid than a trigonal-bipyramid. The juxtaposition of N(4), N(5) and N (6) and the contiguous five-membered chelate ring combination that involves Cu(2), leads to a somewhat distorted bonding situation around Cu(2). The Cu(2)-N(5) distance is quite short (1.933(5) Å), but the Cu(2)-N(4) and Cu(2)-N(6) distances are much longer (2.080(5) Å and 2.141(5) Å respectively).…”
Section: Structuresmentioning
confidence: 99%
“…In combination with other donors such openchain diazine ligands can form several types of copper() complex, e.g. mononuclear, [16][17][18][19] dinuclear, 20-26 trinuclear 27 and tetranuclear. 28,29 In our recent papers 30,31 a series of novel openchain diazine ligands has been shown to coordinate to two copper() centers as N 4 or N 5 donors with a variety of geometrical arrangements, which depend on co-ligands and reaction conditions.…”
Section: Introductionmentioning
confidence: 99%
“…Binuclear complexes of polyfunctional diazine ligands involving ~o l e s , ~ triaz~les,~' and hydrazines [28][29][30][31][32][33] have binuclear centres in which the metal atoms are invariably antiferromagnetically coupled via a superexchange mechanism. In copper(r1) complexes of some quadridentate phthalazines where, in addition to the diazine bridge, a hydroxide group also bridges the two metal centres, exchange integrals fall in the range -2J = 200-800 cm-' with a linear relationship between -W and Cu-O-Cu angle for systems with dxl -, , 2 copper ion ground states.'…”
mentioning
confidence: 99%