Synthesis and x-ray crystal structure of a 24-membered macrocyclic binuclear cadmium(ii) complex with pendant arms

Xu, Xin-You; Wang, Zhilin; Luo, Qiong; Shen, Meng-Chang; Zhou, Xiang-Ge; Zhou, Zhóngyuan

doi:10.1080/00958979808230441

Cited by 6 publications

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“…The macrocyclic chemistry of cadmium has been developed recently [10][11][12][13]. Previous works mainly focused on dinuclear or oxa-aza *Corresponding author.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and characterization of Cd(II) macrocyclic schiff base complex with two 2-Aminoethyl pendant arms

Keypour

Dehghani-Firouzabadi

Rezaeivala

et al. 2010

JICS

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A new pendant armed Schiff base macrocyclic complex of [CdL] 2+ , was prepared via cyclocondensation of 2,6-bis(2-formylphenoxymethyl)pyridine with branched hexaamine in the presence of Cd(II) ion. The ligand was 23-membered oxaazamacrocycle having two 2-aminoethyl pendant arms [L: 3,28-dioxa-14,17-bis(aminoethyl)-11,14,17,20,34-pentaazatetracyclo[34.3.1] tetratriacontane-1(34), 4, 6, 8, 10, 20, 22, 24, 26, 30, 32-undecaene]. The complex was investigated by IR, 1 H NMR, microanalysis and MALDI mass spectroscopy. The structure of the complex was verified by ab initio HF-MO calculations using a standard 3-21G* basis set. This article introduces an unusual seven-membered chelate ring and shows that by its using, the Cd-N bonds lengths within the macrocycle would be longer and also Cd(II)-pendant amine bonds lengths would be shorter.

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“…The macrocyclic chemistry of cadmium has been developed recently [10][11][12][13]. Previous works mainly focused on dinuclear or oxa-aza *Corresponding author.…”

Section: Introductionmentioning

confidence: 99%

“…Previous works mainly focused on dinuclear or oxa-aza *Corresponding author. E-mail: haskey1@yahoo.com pendant arms macrocyclic complexes of cadmium [4,[11][12][13]. Some mononuclear Cd(II) Schiff base [1+1] macrocyclic complexes have been reported [14][15][16].…”

Section: Introductionmentioning

confidence: 99%