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The reaction of NiCl2 with two equivalents of Hqsal-X (Hqsal-X=5-X-N-(8-quinolyl)salicylaldimine) yields the octahedral complexes, [Ni(qsal)2]·MeOH 1 and [Ni(qsal-X)2] (X=OMe 2, Cl 3, Br 4, Me 5, t-Bu 6). UV–Vis spectroscopic studies show that the LMCT band is sensitive to the substituent, ranging from 465 to 520nm. Crystal structures of [Ni(qsal)2]·MeOH 1 and [Ni(qsal-X)2] (X=OMe 2, Cl 3, Br 4) reveal...
The synthesis, structure, and chromogenic properties of polymethylene-vaulted trans-bis(salicylaldiminato)palladium(II) complexes are described. A series of the Pd complexes incorporating nona-, deca-, undeca- and dodecamethylene bridges (1a: n=9; 1b: n=10; 1c: n=11; 1d: n=12) was prepared by the treatment of Pd(OAc)2 with the corresponding N,N′-bis(salicylidene)-1,ω-alkanediamines. The trans-coordination,...
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