A Novel Pentadentate Coordination Mode for the Carbonato Bridge: Synthesis, Crystal Structure, and Magnetic Behavior of (μ3-CO3)[Ni3(Medpt)3(NCS)4], a New Trinuclear Nickel(II) Carbonato-Bridged Complex with Strong Antiferromagnetic Coupling
- 1 January 1996
- journal article
- research article
- Published by American Chemical Society (ACS) in Inorganic Chemistry
- Vol. 35 (11) , 3094-3098
- https://doi.org/10.1021/ic9514105
Abstract
The trinuclear complex (&mgr;(3)-CO(3))[Ni(3)(Medpt)(3)(NCS)(4)] was obtained by reaction of basic solutions of nickel(II), Medpt (bis(3aminopropyl)methylamine) and thiocyanate ligand with atmospheric CO(2) or by simple reaction with carbonate anion. (&mgr;(3)-CO(3))[Ni(3)(Medpt)(3)(NCS)(4)] crystallizes in the triclinic system, space group P&onemacr;, with a = 12.107(5) Å, b = 12.535(7) Å, c = 16.169(9) Å, alpha = 102.69(5) degrees, beta = 92.91(5) degrees, gamma = 118.01(4) degrees, Z = 2, and R = 0.043. The three nickel atoms are asymmetrically bridged by one pentadentate carbonato ligand, which shows a novel coordination mode. The (&mgr;(3)-CO(3))[Ni(3)(Medpt)(3)(NCS)(4)] compound shows a very strong antiferromagnetic coupling. Fit as irregular triangular arrangement gave J(1) = -88.4, J(2) = -57.7, and J(3) = -9.6 cm(-)(1), which is the strongest AF coupling observed to date for Ni(3) compounds. The magnetic behavior of the carbonato bridge is discussed.Keywords
This publication has 18 references indexed in Scilit:
- crystal Structure and Electrospray Ionization Mass Spectrometry, Electron Paramagnetic Resonance, and Magnetic Susceptibility Study of [Cu2(ascidH2)(1,2-.mu.-CO3)(H2O)2].cntdot.2H2O, the Bis(copper(II)) Complex of Ascidiacyclamide (ascidH4), a Cyclic Peptide Isolated from the Ascidian Lissoclinum patellaInorganic Chemistry, 1994
- Crystal structure and magnetic behaviour of a new kind of one-dimensional nickel(II) thiocyanate compound [{NiL(SCN)(µ-SCN)}n][L = bis(3-aminopropyl)methylamine]J. Chem. Soc., Dalton Trans., 1994
- Preparation and redox chemistry of novel carbonato-bridged cobalt(II) complexes with 1,4,8,11-tetrakis(2-aminoethyl)-1,4,8,11-tetraazacyclotetradecane and 1,4,8,11-tetrakis(pyridylmethyl)-1,4,8,11-tetraazacyclotetradecaneInorganic Chemistry, 1991
- Structure, Magnetic Susceptibility, and EPR Spectra of a Dimeric Macrocyclic Chromium(III) Complex Bridged by a Single Carbonate Ligand.Acta Chemica Scandinavica, 1991
- Phase transition and exchange interaction in (.mu.-carbonato)bis[(N,N,N',N",N"-pentaethyldiethylenetriamine)copper(II)] diperchlorateInorganic Chemistry, 1988
- Molecular structure and magnetic properties of a novel Fe(III) tetranuclear complex containing oxo, alkoxo, and carbonato bridgesJournal of the American Chemical Society, 1987
- The Crystal and Molecular Structure of a Polynuclear Cu(II) Complex; catena-mu-(Carbonato-O,O':O'')-2,2'-Dipyridylamine-Copper(II) Trihydrate.Acta Chemica Scandinavica, 1984
- Synthesis, properties, and crystallographic characterization of a dinuclear .mu.-carbonato complex of cobalt(III): [(NH3)3Co(.mu.-OH)2(.mu.-CO3)Co(NH3)3]SO4.5H2OInorganic Chemistry, 1981
- Antiferromagnetic interactions in diamminecopper(II) carbonateInorganic Chemistry, 1972
- Some complexes of dipropylenetriamine with nickel(II), copper(II), zinc(II), and cobalt(III)J. Chem. Soc. A, 1968