%0 Journal Article %1 ISI:000295435000016 %A Hadadzadeh, Hassan %A Mansouri, Ghobad %A Rezvani, Ali %A Khavasi, Hamid R. %A Skelton, Brian W. %A Makha, Mohamed %A Charati, Faramarz Rostami %C THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND %D 2011 %I PERGAMON-ELSEVIER SCIENCE LTD %J POLYHEDRON %K Magnetic Nickel(II) Polypyridyl Supramer} Supramolecular chirality; complex; ligands; moment; {Polymorphism; %N 15 %P 2535-2543 %R 10.1016/j.poly.2011.06.037 %T Mononuclear nickel(II) complexes coordinated by polypyridyl ligands %V 30 %X Three mononuclear polypyridyl complexes of Ni(II), Ni(Ph(2)phen)(3)(PF(6))(2)center dot CH(3)CN (1), Ni(dpa)(2)(phen)(PF(6))(2) (2) and Ni(bpy)(3)(PF(6))(2) (3), where Ph(2)phen is 4,7-diphenyl-1,10-phenanthroline, dpa is 2,2'-dipyridylamine, bpy is 2,2'-bipyridine, and phen is 1,10-phenanthroline, were prepared and their solid state structures determined by single-crystal X-ray crystallography. The structural determination shows that the coordination geometry around the Ni(II) center is a distorted octahedron in each complex. The investigation of synthesis procedure and crystallographic data of complex 3 indicates the spontaneous resolution of supramolecular chirality. A careful inspection of the packing pattern in the lattice of each complex reveals that non-covalent interactions of two different types, viz. C-H center dot center dot center dot F and C-H center dot center dot center dot pi interactions, are active in the lattice. The packing structures of 1-3 also show that the rings of the polypyridyl ligands, Ph(2)phen, dpa, bpy, and phen, are not located face-to-face and can not interact through pi-pi interactions. Cyclic voltammetry data of 1 and 3 show that the Ni(III/II) reduction couple is quasi-reversible and this reduction becomes progressively more difficult on passing from bpy to Ph(2)phen, while complex 2 shows an irreversible behavior with the peak-to-peak separation of about 500 mV. Magnetic susceptibility data derived from paramagnetic NMR revealed effective magnetic moments of 3.12 BM for 1, 3.27 BM for 2, and 3.14 for 3 at room temperature. (C) 2011 Elsevier Ltd. All rights reserved.

@article{ISI:000295435000016, abstract = {{Three mononuclear polypyridyl complexes of Ni(II), {[}Ni(Ph(2)phen)(3)](PF(6))(2)center dot CH(3)CN (1), {[}Ni(dpa)(2)(phen)](PF(6))(2) (2) and {[}Ni(bpy)(3)](PF(6))(2) (3), where Ph(2)phen is 4,7-diphenyl-1,10-phenanthroline, dpa is 2,2'-dipyridylamine, bpy is 2,2'-bipyridine, and phen is 1,10-phenanthroline, were prepared and their solid state structures determined by single-crystal X-ray crystallography. The structural determination shows that the coordination geometry around the Ni(II) center is a distorted octahedron in each complex. The investigation of synthesis procedure and crystallographic data of complex 3 indicates the spontaneous resolution of supramolecular chirality. A careful inspection of the packing pattern in the lattice of each complex reveals that non-covalent interactions of two different types, viz. C-H center dot center dot center dot F and C-H center dot center dot center dot pi interactions, are active in the lattice. The packing structures of 1-3 also show that the rings of the polypyridyl ligands, Ph(2)phen, dpa, bpy, and phen, are not located face-to-face and can not interact through pi-pi interactions. Cyclic voltammetry data of 1 and 3 show that the Ni(III/II) reduction couple is quasi-reversible and this reduction becomes progressively more difficult on passing from bpy to Ph(2)phen, while complex 2 shows an irreversible behavior with the peak-to-peak separation of about 500 mV. Magnetic susceptibility data derived from paramagnetic NMR revealed effective magnetic moments of 3.12 BM for 1, 3.27 BM for 2, and 3.14 for 3 at room temperature. (C) 2011 Elsevier Ltd. All rights reserved.}}, added-at = {2017-05-10T15:29:29.000+0200}, address = {{THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND}}, affiliation = {{Hadadzadeh, H (Reprint Author), Isfahan Univ Technol, Dept Chem, Esfahan 8415683111, Iran. Hadadzadeh, Hassan, Isfahan Univ Technol, Dept Chem, Esfahan 8415683111, Iran. Mansouri, Ghobad, Islamic Azad Univ, Dept Chem, Branch Kermanshah, Kermanshah, Iran. Mansouri, Ghobad; Rezvani, Ali, Univ Sistan \& Baluchestan, Dept Chem, Zahedan, Iran. Khavasi, Hamid R., Shahid Beheshti Univ, Dept Chem, Tehran, Iran. Skelton, Brian W.; Makha, Mohamed, Univ Western Australia, Sch Biomed Biomol \& Chem Sci, Nedlands, WA 6009, Australia. Charati, Faramarz Rostami, Gonbad Kavous Univ, Fac Sci, Dept Chem, Gonbad, Iran.}}, author = {Hadadzadeh, Hassan and Mansouri, Ghobad and Rezvani, Ali and Khavasi, Hamid R. and Skelton, Brian W. and Makha, Mohamed and Charati, Faramarz Rostami}, author-email = {{hadad@cc.iut.ac.ir}}, biburl = {https://www.bibsonomy.org/bibtex/2da18cb667b6bdbe21504c0e98d64f7e4/hkhavasi}, cited-references = {{Afshar RK, 2006, INORG CHIM ACTA, V359, P4105, DOI 10.1016/j.ica.2006.04.020. Al-Noaimi M, 2008, POLYHEDRON, V27, P3239, DOI 10.1016/j.poly.2008.07.033. Allen FH, 2002, ACTA CRYSTALLOGR B, V58, P407, DOI 10.1107/S0108768102004895. Anderson P. O., 1973, J CHEM SOC DA, P1237. Bond A.D., 2002, SUPRAMOLECULAR ORG M. BOYS D, 1984, ACTA CRYSTALLOGR C, V40, P1359, DOI 10.1107/S0108270184007964. Breu J, 2000, EUR J INORG CHEM, P2401. Brewer B, 2003, J CHEM CRYSTALLOGR, V33, P651, DOI 10.1023/A:1025333223878. Browne WR, 2006, COORDIN CHEM REV, V250, P1653, DOI 10.1016/j.ccr.2005.12.008. 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CregoCalama M, 2006, TOP CURR CHEM, V265, P1.}}, doc-delivery-number = {{827NK}}, doi = {{10.1016/j.poly.2011.06.037}}, funding-acknowledgement = {{Isfahan University of Technology (IUT); University of Sistan and Baluchestan (USB)}}, funding-text = {{We are grateful to the Isfahan University of Technology (IUT) and University of Sistan and Baluchestan (USB) for financial support.}}, interhash = {4406447840027c9b96693788e88ed485}, intrahash = {da18cb667b6bdbe21504c0e98d64f7e4}, issn = {{0277-5387}}, journal = {{POLYHEDRON}}, journal-iso = {{Polyhedron}}, keywords = {Magnetic Nickel(II) Polypyridyl Supramer} Supramolecular chirality; complex; ligands; moment; {Polymorphism;}, keywords-plus = {{DONOR HETEROCYCLIC LIGANDS; COPPER(II) COMPLEXES; CRYSTAL-STRUCTURE; RUTHENIUM COMPLEXES; NITROGEN-DONOR; DNA; NI; CO; 2,2'-BIPYRIDINE; SPECTROSCOPY}}, language = {{English}}, month = {{SEP 21}}, number = {{15}}, number-of-cited-references = {{57}}, pages = {{2535-2543}}, publisher = {{PERGAMON-ELSEVIER SCIENCE LTD}}, research-areas = {{Chemistry; Crystallography}}, researcherid-numbers = {{Skelton, Brian/K-2532-2012}}, times-cited = {{11}}, timestamp = {2017-05-10T15:29:29.000+0200}, title = {{Mononuclear nickel(II) complexes coordinated by polypyridyl ligands}}, type = {{Article}}, unique-id = {{ISI:000295435000016}}, usage-count-last-180-days = {{1}}, usage-count-since-2013 = {{12}}, volume = {{30}}, web-of-science-categories = {{Chemistry, Inorganic \& Nuclear; Crystallography}}, year = {{2011}} }