The title compound, [N-(2-pyridylmethyl)-(L)-alanine]Co(III) thiocyanate (1) was obtained from the reaction of Co(OOCH3)2·H2O with the tridentate reduced Schiff base ligand, N-(2-pyridylmethyl)-(L)-alanine (L) and NH4SCN and characterized by elemental analysis, IR, UV-visible, TGA and single-crystal X-ray diffraction. Structural and spectroscopic analyses reveal [Co(L)2)]SCN to be monomeric with Cobalt(III) adopting a pseudo-octahedral geometry, coordinating to two reduce Schiff base ligands. In the crystal lattice, the thiocyanate anion forms an intermolecular SCN···HNamine hydrogen bond, while adjacent monomers are linked by intermolecular Ocarboxyl···HNamine···H-bonds to form a supramolecular network. This work is therefore undertaken in an
References
[1]
Vafazadeh, R. and Kashfi, M. (2007) Synthesis and Characterization of Cobalt(III) Octahedral Complexes with Flexible Salpn Schiff Base in Solution. Structural Dependence of the Complexes on the Nature of Schiff Base and Axial Ligands. Bulletin of the Korean Chemical Society, 28, 1227-1230.
https://doi.org/10.5012/bkcs.2007.28.7.1227
[2]
Meghdadi, S., Amirnasr, M., Mereiter, K., Molaee, H. and Amiri, A. (2011) Synthesis, Structure and Electrochemistry of Co(III) Complexes with an Unsymmetrical Schiff Base Ligand Derived from 2-Aminobenzylamine and Pyrrole-2-Carboxaldehyde. Polyhedron, 30, 1651-1656.
https://doi.org/10.1016/j.poly.2011.03.041
[3]
Perkins, C.M., Rose, N.J. and Stenkamp, R.E. (1990) The Structure of Cobalt Methylmalonate Complexes, CoClN4O7C10H28 and CoCl2N4O5.5C11H28, Models for Metal Complexes of γ-Carboxyglutamic Acid. Inorganica Chimica Acta, 172, 119-125.
https://doi.org/10.1016/S0020-1693(00)80460-0
[4]
Costa, G., Mestroni, G. and Cocevar, C. (1971) Cobalt Chelates as Models for Methyl Donors and Acceptors in Vitamin B12-Dependent Transmethylation. Direct Methylation of Vitamin B12a. Journal of the Chemical Society D, 13, 706.
https://doi.org/10.1039/c2971000706b
[5]
Martín, C., Whiteoak, C.J., Martin, E., Escudero-Adán, E.C., Galán-Mascarós, J.R. and Kleij, A.W. (2014) Synthesis and Structural Features of Co(II) and Co(III) Complexes Supported by Aminotrisphenolate Ligand Scaffolds. Inorganic Chemistry, 53, 11675-11681. https://doi.org/10.1021/ic501883z
[6]
Zheng, Y., Zhou, Y.-L., Zeng, M.-H. and Kurmoo, M. (2015) The Concept of Mixed-Organic Frameworks: Design, Turnig and Functions. Dalton Transactions, 44, 5258-5275. https://doi.org/10.1039/C4DT04030A
[7]
Yang, C.T., Moubaraki, B., Murray, K.S., Ranford, J.D. and Vittal, J.J. (2001) Interconversion of a Monomer and Two Coordination Polymers of a Copper(II)-Reduced Schiff Base Ligand-1, 10-Phenanthroline Complex Based on Hydrogen-and Coordinative-Bonding. Inorganic Chemistry, 40, 5934-5941.
https://doi.org/10.1021/ic010479b
[8]
Ganguly, R., Sreenivasulu, B. and Vittal, J.J. (2008) Amino Acid-Containing Reduced Schiff Bases as the Building Blocks for Metallasupramolecular Structures. Coordination Chemistry Reviews, 252, 1027-1050.
https://doi.org/10.1016/j.ccr.2008.01.005
[9]
Sreenivasulu, B. and Vittal, J.J. (2009) Hydrogen-Bonded Copper (II) and Nickel (II) Complexes and Coordination Polymeric Structures Containing Reduced Schiff Base Ligands. Inorganica Chimica Acta, 362, 2735-2743.
https://doi.org/10.1016/j.ica.2008.12.018
[10]
Buckingham, D.A. (1994) The Linkage Isomerism of Thiocyanate Bonded to Cobalt (III). Coordination Chemistry Reviews, 135, 587-621.
https://doi.org/10.1016/0010-8545(94)80078-2
[11]
Ndifon, P.T., Agwara, M.O., Paboudam, A.G., Yufanyi, D.M., Ngoune, J., Galindo, A., álvarez, E. and Mohamadou, A. (2009) Synthesis, Characterisation and Crystal Structure of a Cobalt(II)-Hexamethylenetetramine Coordination Polymer. Transition Metal Chemistry, 34, 745-750. https://doi.org/10.1007/s11243-009-9257-1
[12]
Sheldrick, G.M. (1997) SHELXL97, Program for Crystal Structure Refinement. University of Gottingen, Gottingen.
[13]
Sheldrick, G.M. (2001) SHELXTL, Version 6.1. Bruker AXS, Inc., Maddison, WI.
[14]
Malecki, G., Gron, T. and Duda. H. (2012) Structural, Spectroscopic and Magnetic Properties of Thiocyanate Complexes of Mn(II), Ni(II) and Cu(II) with the 1-Methylimidazole Ligand. Polyhedron, 36, 56-68.
https://doi.org/10.1016/j.poly.2012.01.026
[15]
Chavez, F.A. and Mascharak, P.K. (2000) Co (III)-Alkylperoxo Complexes: Syntheses, Structure-Reactivity Correlations, and Use in the Oxidation of Hydrocarbons. Accounts of Chemical Research, 33, 539-545.
https://doi.org/10.1021/ar990089h
[16]
Murugavel, R., Choudhury, A., Walawalkar, M.G., Pothiraja, R. and Rao, C.N.R. (2008) Metal Complexes of Organophosphate Esters and Open-Framework Metal Phosphates: Synthesis, Structure, Transformations, and Applications. Chemical Reviews, 108, 3549-3655. https://doi.org/10.1021/cr000119q
[17]
Khan, S., Bhar, K., Roy, S., Mitra, P., Slawin, A.M.Z. and Ghosh, B.K. (2011) Synthesis, Structures and Molecular Properties of Two Mononuclear Cobalt(III) Halide Complexes Containing a Tetradentate N-Donor Schiff Base as End-Capping Ligand. Indian Journal of Chemistry, 50A, 1429-1435.
[18]
Pariya, C., Chaudhuri, N.R., Das, A. and Seth, S.K. (1995) Crystal Structure of Bis (N1-Isopropyl-2-Methyl-1,2-Propanediamine)Isothiocyanatozinc (II) Thiocyanate. Acta Chemica Scandinavica, 49, 859-864.
https://doi.org/10.3891/acta.chem.scand.49-0859
[19]
Layek, M., Ghosh, M., Sain, S., Fleck, M., Muthiah, P.T., Jenniefer, S.J., Ribas, J. and Bandyopadhyay, D. (2013) Synthesis, Crystal Structure and Magnetic Properties of Nickel (II) and Cobalt (III) Complexes of a Pentadentate Schiff Base. Journal of Molecular Structure, 1036, 422-426. https://doi.org/10.1016/j.molstruc.2012.11.068
