Detail of "7328-91-8"

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A novel tridentate coordination mode for the carbonatonickel system

A novel tridentate coordination mode for the carbonatonickel system.Some chemicals with cas registry numbers like 188070-41-9 and 7328-91-8 are also used. Escuer, Albert; Vicente, Ramon; Kumar, Sujit B.; Solans, Xavier; Font-Bardia, Merce (Dep. Quim. Inorg., Univ. Barcelona, Barcelona 08028, Spain). Journal of the Chemical Society, Dalton Transactions: Inorganic Chemistry, (3), 403-407 (English) 1997 Royal Society of Chemistry. CODEN: JCDTBI. ISSN: 0300-9246. DOCUMENT TYPE: Journal CA Section: 78 (Inorganic Chemicals and Reactions) Section cross-reference(s): 75, 77 Trinuclear [Ni2(m-CO3)(dmpd)4(H2O)][Ni(dmpd)2(H2O)2][ClO4]4×H2O was obtained from the reaction of basic solns. of Ni(ClO4)2 and 2,2-dimethylpropane-1,3-diamine (dmpd) with atm. CO2. It crystallizes in the orthorhombic system, space group Pcab, with a 18.634(10), b 25.447(8), c 25.598(4) ?, Z = 8, R = 0.0437. The three Ni atoms show octahedral coordination with three different environments, Ni(CO3-O,O')(dmpd)2, Ni(CO3-O'')(dmpd)2(H2O) and Ni(dmpd)2(H2O)2. The carbonate anion acts as a bridge between two Ni ions whereas the [Ni(dmpd)2(H2O)2]2+ subunit shows a moderately weak antiferromagnetic coupling with a J value of -7.8 cm-1. The tridentate coordination mode found in the carbonate ligand has not previously been reported for Ni. Its magnetic behavior is discussed. .