Structure of 1% copper(II)-doped dichlorobis(1,2-dimethylimidazole)zinc(II)

Abstract

Abstract. [Zno.99Cuo.olC12(CsH8N2) 297 (1) K, R --0-028 for 1782 unique observed reflections. The structure contains discrete dichlorobis(1,2-dimethylimidazole)zinc(II) molecules. Pseudotetrahedral N2C12 coordination about zinc is effected by coordination to two imidazole and two

Synthesis and structural characterisation of tetrahedral zinc(II) and trigonal bipyramidal cadmium(II) complexes containing N′-cyclohexyl substituted N,N-bispyrazolyl ligand

“…The ZnACl bond lengths were 2.237(2) and 2.226(2) Å for Zn(1)-Cl(1) and Zn(1)-Cl(2), respectively. These values were similar to those reported previously for similar complexes[59][60][61]. [L 1 ZnCl 2 ] showed a non-coordinative interaction between the N atom of the amine moiety and Zn(II) centre, as determined based on the Zn1AN5 bond length (3.537 Å).…”

Bis(2-benzyl-1H-benzimidazole-N3)dichorozinc(II)

“…The average ZnÐN bond distance of 2.042 (3) A Ê is comparable to reported average values, e.g. 2.039 (3) A Ê in ZnCl 2 (5,7-dimethyl-1,2,4-triazolo[1,5-a]pyrimidine) 2 (Salas et al, 1994), 2.05 (1) A Ê in ZnCl 2 (1-methyltetrazole) 2 (Baenziger & Schultz, 1971), 2.059 (3) A Ê in ZnCl 2 (1-methylcytosine) 2 (Beauchamp, 1984) and 2.027 (3) A Ê in ZnCl 2 [1-(5,6-dimethylbenzimidazolyl)-3-benzimidazolyl-2-thiapropane] (Matthews et al, 1998), but longer than the average value of 2.007 (4) A Ê in Zn 0.99 Cu 0.01 Cl 2 (1,2-dimethylimidazole) 2 (Bharadwaj et al, 1991).…”

Dichlorobis(5,7-dimethyl[1,2,4]triazolo[1,5-a]pyrimidine-N3)zinc(II)

“…The Zn--N3 distances of 2.058 (2) (N3A) and 2.020 (2) A (N3B) are in agreement with those found for the analogous complex dibromobis([1,2,4]triazolo[1,5-a]pyrimidine-N3)zinc(II) hemihydrate (Sanni et al, 1986). The Zn--C1 distances of 2.197 (1) (Zn--Cll) and 2.2499 (8) ,/k (Zn---C12) are in the expected range for metal complexes with ZnN2C12 distorted tetrahedral environments (Preston & Kennard, 1969;Baenziger & Schultz, 1971;Steffen & Palenik, 1977;Beauchamp, 1984;Cariati et al, 1983;Bharadwaj, Schugar & Potenza, 1991).…”