6533b81ffe1ef96bd127876a

RESEARCH PRODUCT

A rare example of nickel(ii) chains based on a heteroscorpionate-like ligand with quadruple imidazolyl interactions

Emilio EscrivàJulia García-lozanoLucia SotoG. Mínguez EspallargasC. Ramirez De ArellanoA. SanchoCarlos J. Gómez-garcíaJuan J. Borrás-almenar

subject

Chain modelCoordination polymerLigandStereochemistrychemistry.chemical_elementBridging ligandZero field splittingInorganic Chemistrychemistry.chemical_compoundNickelCrystallographychemistryChain (algebraic topology)Antiferromagnetism

description

The first nickel(ii) complex with the heteroscorpionate-like bridging ligand DIMMAL (2-di1H-2-imidazolylmethylmalonate), [Ni(DIMMAL)(H2O)3]n·3nH2O (1), is a one-dimensional coordination polymer whose structure shows regular Ni(ii) chains with H-bonding inter-chain interactions and a rare example of a Quadruple Imidazolyl Embrace (QIE). The Ni(ii) chain shows a weak antiferromagnetic interaction that can be modelled with a regular S = 1 chain model including a zero field splitting with g = 2.270, J = -1.5 cm(-1) and D = -2.26 cm(-1).

https://doi.org/10.1039/c4dt01099j