Structures and magnetic properties of an antiferromagnetically coupled polymeric copper(II) complex and ferromagnetically coupled hexanuclear nickel(II) clusters

Inorganic Chemistry
Santokh Singh TandonLaurence K Thompson

Abstract

Reactions between 2,6-diformyl-4-methylphenol (DFMF) and tris(hydroxymethyl) aminomethane (THMAM = H(3)L2) in the presence of copper(II) salts, CuX(2) (X = CH(3)CO(2)(-), BF(4)(-), ClO(4)(-), Cl(-), NO(3)(-)) and Ni(CH(3)CO(2))(2) or Ni(ClO(4))(2)/NaC(6)H(5)CO(2), sodium azide (NaN(3)), and triethylamine (TEA), in one pot self-assemble giving a coordination polymer consisting of repeating pentanuclear copper(II) clusters {[Cu(2)(H(5)L(2-))(μ-N(3))](2)[Cu(N(3))(4)]·2CH(3)OH}(n) (1) and hexanuclear Ni(II) complexes [Ni(6)(H(3)L1(-))(2)(HL2(2-))(2)(μ-N(3))(4)(CH(3)CO(2))(2)]·6C(3)H(7)NO·C(2)H(5)OH (2) and [Ni(6)(H(3)L1(-))(2)(HL2(2-))(2)(μ-N(3))(4)(C(6)H(5)CO(2))(2)]·3C(3)H(7)NO·3H(2)O·CH(3)OH (3). In 1, H(5)L(2-) and in 2 and 3 H(3)L1(-) and HL2(2-) represent doubly deprotonated, singly deprotonated, and doubly deprotonated Schiff-base ligands H(7)L and H(4)L1 and a tripodal ligand H(3)L2, respectively. 1 has a novel double-stranded ladder-like structure in which [Cu(N(3))(4)](2-) anions link single chains comprised of dinuclear cationic subunits [Cu(2)(H(5)L(2-))(μ-N(3))](+), forming a 3D structure of interconnected ladders through H bonding. Nickel(II) clusters 2 and 3 have very similar neutral hexanuclear cores in which six ni...Continue Reading

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Citations

Sep 20, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Jun-Li WangDong-Bin Dang
Jan 24, 2013·Dalton Transactions : an International Journal of Inorganic Chemistry·Sandip Mukherjee, Partha Sarathi Mukherjee
Apr 4, 2013·Dalton Transactions : an International Journal of Inorganic Chemistry·Graham N NewtonHiroki Oshio
Jul 10, 2013·Dalton Transactions : an International Journal of Inorganic Chemistry·Jiang LiuXian-Ming Zhang
Jan 7, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Chun-Hung ChiangGene-Hsiang Lee
Nov 23, 2013·Dalton Transactions : an International Journal of Inorganic Chemistry·Yen-Wen TzengLong-Li Lai
Dec 2, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Santokh S TandonLaurence K Thompson

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