PMID- 24747853 OWN - NLM STAT- MEDLINE DCOM- 20150109 LR - 20161125 IS - 1873-3557 (Electronic) IS - 1386-1425 (Linking) VI - 129 DP - 2014 Aug 14 TI - Spectroscopic and structural study of some 2,5-hexanedione bis(salicyloylhydrazone) complexes: crystal structures of its Ni(II) and Cu(II) complexes and N-(2,5-dimethyl-1H-pyrrol-1-yl)-2-hydroxy-benzamide. PG - 307-13 LID - S1386-1425(14)00397-7 [pii] LID - 10.1016/j.saa.2014.02.195 [doi] AB - The reaction between 2,5-hexanedione and salicylic acid hydrazide produced two compounds: 2,5-hexanedione bis(salicyloylhydrazone) [HDSH] (ethanol insoluble) and N-(2,5-dimethyl-1H-pyrrol-1-yl)-2-hydroxybenzamide [DPH] (ethanol soluble). HDSH formed complexes with Co(II), Ni(II), Cu(II), Zn(II), Cd(II), Hg(II) and Pd(II) which are characterized by elemental analyses, spectra (IR, (1)H NMR, ESR and MS), thermal and magnetic measurements. The crystals of [Ni(HDSH-2H)(EtOH)(H2O)] and [Cu(HDSH-2H)] were solved having octahedral and square-planar geometries, respectively. The other complexes have the formulae [Co(HDSH-2H)(H2O)2], [Cu(HDSH-H)2], [Zn(HDSH-2H)(H2O)2], [Cd2(HDSH-4H)(H2O)4], [Cd2(HDSH-2H)(H2O)4Cl2]; [Hg(HDSH-2H)] and [Pd2(HDSH-4H)(H2O)4]. The obtained complexes are stable in air and non-hygroscopic. The magnetic moments and electronic spectra of the complexes provide different geometries. The ESR spectra support the mononuclear geometry for [Cu(HDSH-2H)] and [Cu(HDSH-H)2]. The thermal decomposition of the complexes revealed the coordinated waters as well as the end product which is in most cases the metal oxide. The crystal structure of N-(2,5-dimethyl-1H-pyrrol-1-yl)-2-hydroxybenzamide is solved by X-ray technique. CI - Copyright (c) 2014 Elsevier B.V. All rights reserved. FAU - Jeragh, Bakir AU - Jeragh B AD - Chemistry Department, Faculty of Science, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait. Electronic address: bakir.jeragh@ku.edu.kw. FAU - El-Asmy, Ahmed A AU - El-Asmy AA AD - Chemistry Department, Faculty of Science, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140313 PL - England TA - Spectrochim Acta A Mol Biomol Spectrosc JT - Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy JID - 9602533 RN - 0 (2-hydroxybenzamide) RN - 0 (Benzamides) RN - 0 (Coordination Complexes) RN - 0 (Hexanones) RN - 0 (Hydrazones) RN - 789U1901C5 (Copper) RN - 7OV03QG267 (Nickel) RN - C0Z8884J3P (2,5-hexanedione) SB - IM MH - Benzamides/chemical synthesis/*chemistry MH - Coordination Complexes/chemical synthesis/*chemistry MH - Copper/*chemistry MH - Crystallography, X-Ray MH - Hexanones/chemical synthesis/*chemistry MH - Hydrazones/chemical synthesis/*chemistry MH - Models, Molecular MH - Nickel/*chemistry MH - Spectrum Analysis OTO - NOTNLM OT - 2,5-Hexanedione bis(salicyloylhydrazone) OT - ESR OT - N-(2,5-dimethyl-1H-pyrrol-1-yl)-2-hydroxybenzamide OT - Spectra OT - X-ray structure EDAT- 2014/04/22 06:00 MHDA- 2015/01/13 06:00 CRDT- 2014/04/22 06:00 PHST- 2013/12/21 00:00 [received] PHST- 2014/01/27 00:00 [revised] PHST- 2014/02/19 00:00 [accepted] PHST- 2014/04/22 06:00 [entrez] PHST- 2014/04/22 06:00 [pubmed] PHST- 2015/01/13 06:00 [medline] AID - S1386-1425(14)00397-7 [pii] AID - 10.1016/j.saa.2014.02.195 [doi] PST - ppublish SO - Spectrochim Acta A Mol Biomol Spectrosc. 2014 Aug 14;129:307-13. doi: 10.1016/j.saa.2014.02.195. Epub 2014 Mar 13.