| Summary: | Six pseudohalide zinc(II) containing a variety of <i>N</i>-donor auxiliary amines were structurally characterized. These include two mononuclear trigonal bipyramidal [Zn(NTB)(N<sub>3</sub>)]ClO<sub>4</sub>·½H<sub>2</sub>O (<b>3</b>) and [Zn(TPA)(NCS)]ClO<sub>4</sub> (<b>4</b>), two distorted octahedral [Zn(1,8-damnph)<sub>2</sub>(dca)<sub>2</sub>] (<b>5</b>) and [Zn(8-amq)<sub>2</sub>(dca)<sub>2</sub>] (<b>6a</b>) as well as two 1D polymeric chains <i>catena</i>-[Zn(isq)<sub>2</sub>(μ<sub>1,5</sub>-dca)<sub>2</sub>] (<b>7</b>) and <i>catena</i>-[Zn(<i>N</i>,<i>N</i>-Me<sub>2</sub>en)<sub>2</sub>(μ<sub>1,5</sub>-dca)]dca (<b>8</b>), where NTB = tris(2-benzimidazolylmethyl)amine, TPA = tris(2-pyridylmethyl)amine, 1,8-damnph = 1,8-diaminonaphthalene, 8-amq = 8-amino-quinoline, isq = isoquinoline (isq) and <i>N</i>,<i>N</i>-Me<sub>2</sub>en = <i>N</i>,<i>N</i>-dimethylethylenediamine. In general, with the exception of <b>6</b> and <b>8</b>, the complexes exhibited luminescence emission in MeOH associated with red shift of the emission maxima, and the strongest visible fluorescence peak was detected at 421 nm (λ<sub>ex</sub> = 330 nm) in the case of Complex <b>5</b>.
|
|---|