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X-ray crystal structure of manganese(II) bis(ethylenediphosphinetetraacetato)nickelate(II) hexadecahydrate
Institution:1. School of Health and Social Development, Deakin University, 221 Burwood Hwy, Burwood, VIC, Australia;2. Iowa State University, Department of Kinesiology, Ames, IA, USA;3. Centre for Physical Activity and Nutrition Research, School of Exercise and Nutrition Sciences, Deakin University, 221 Burwood Hwy, Burwood, VIC, Australia;4. Biostatistics, Pro Vice Chancellors Office, Faculty of Health, Deakin University, 221 Burwood Hwy, Burwood, VIC, Australia;5. School of Kinesiology, University of Michigan, Ann Arbor, MI, USA;1. School of Life Sciences, Institute of Life Sciences and Green Development, Hebei University, Baoding 071002, China;2. Institute of Materials for Energy and Environment, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China;3. State Key Laboratory of Pollution Control and Resource Reuse, Nanjing University, Nanjing 210093, China;4. Water Science and Environmental Engineering Research Center, College of Chemical and Environmental Engineering, Shenzhen University, Shenzhen 518060, China;1. Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts Amherst, Amherst, MA, 01003, USA;2. Biotechnology Training Program, University of Massachusetts Amherst, Amherst, MA, 01003, USA;3. Genomics Resource Laboratory, Institute for Applied Life Sciences, University of Massachusetts Amherst, Amherst, MA, 01003, USA;1. Department of Studies and Research in Chemistry/Industrial Chemistry, Vijayanagara Sri Krishnadevaraya University, Ballari, 583105, Karnataka, India;2. Department of Studies in Physics, University of Mysore, Manasagangothri, Mysuru, 570 006, India;3. Department of Applied Chemistry and Biology (CIBQA), Universidad Bernardo O''Higgins, Campus Rondizzoni, Avenida Viel, 1702, Santiago, Chile;1. School of BioSciences, The University of Melbourne, Parkville Campus, Victoria 3010, Australia;2. The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville Campus, Victoria 3010, Australia;3. Department of Biochemistry, Emory University School of Medicine, Atlanta, GA 30322, USA
Abstract:X-ray structure analysis of the title compound (diffractometer data, R = 0.061 for 2805 reflections) confirmed the structure proposed on the basis of spectral evidence for the series of isostructural complexes, M3NiL2 (H2O)16, where H4L = (HO2CCH2)2PCH2CH2P(CH2CO2H)2 and M = Mn, Fe, Co, Ni, Zn or Cd. The compound studied is monoclinic, P21/c, a = 9.990(3), b = 28.51(2), c = 14.828(9) Å, β =94.50(5)°, Z = 4. Nickel(II) is coordinated by two P,P-chelating ligand anions in a rather distorted square planar environment. The carboxyl groups of the ligand are not coordinated to nickel; three of them remain free and five are bonded, together with 10 of the total of 16 water molecules, to the manganese(II) ions. The environments of three manganese ions thus formed are all nearly octahedral but differ in the number and bonding mode of the carboxyls (monodentate and/or bridging bidentate). The carboxyl-to-manganese bonds produce a three-dimensional structure of the compound which is further stabilized by hydrogen bonding.
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