Syntheses, crystal structures and thermoanalyses of alkaline earth metal complexes derived from dinitropyridone

CORC > 西安光学精密机械研究所 > 中国科学院西安光学精密机械研究所 > 先进光电与生物材料研发中心

	Syntheses, crystal structures and thermoanalyses of alkaline earth metal complexes derived from dinitropyridone
	Zhou, Qiu-Ping 1; Zhang, Guo-Fang 1; She, Jiang-Bo 2
刊名	journal of coordination chemistry
	2008
卷号	61 期号:16 页码:2601-2614
关键词	alkaline-earth metal complex dinitropyridone crystal structure powder XRD thermoanalysis
英文摘要	six new alkaline-earth metal compounds derived from dinitropyridone ligands (3,5-dinitropyrid-2-one, 2hdnp; 3,5-dinitropyrid-4-one, 4hdnp and 3,5-dinitropyrid-4-one-n-hydroxide, 4hdnpo) were synthesized and characterized by elemental analysis, ft-ir and partly by powder xrd, tg-dsc and x-ray single-crystal diffraction analysis. the structural determination revealed that one molecule of both magnesium salts (mg(2dnp)(2)center dot 8h(2)o, (1), and mg(4dnp)(2)center dot 6h(2)o (4)) comprise one cation [mg(h(2)o)(6)](2+) and two anions displaying centro-symmetry with the mg atom located at the center. two anions (and crystalline water molecules) are joined by hydrogen bonds. the barium salt ba(4dnp)(2)center dot 4h(2)o (5), is a centro-symmetric dimer with each ba(ii) being coordinated by one monodentate ligand anion, two bidentate ligand anions (different coordination pattern) and five water molecules. another barium salt, ba(4dnpo)(2)center dot 6h(2)o (6), is a coordination polymer, the ten-coordinate (bao(10)) barium environment comprising four water molecules, a pair of 4dnpos via the pyridine-n-oxide oxygen, and one 4dnpos from an adjacent metal atom offering chelating nitro group oxygen, bridging adjacent bariums. abundant intermolecular hydrogen bonds link the molecules of each complex into multi-dimensional chains. the x-ray powder diffraction analysis confirmed the phase homogeneity of the polycrystalline samples. the tg-dsc results revealed that mg(2dnp)(2)center dot 8h(2)o and ba(4dnp)(2)center dot 6h(2)o each has three main weight-loss stages. the first step is the loss of all water molecules and the last step is the loss of the nitro groups and/or decomposition of the pyridine rings with the release of heat.
WOS标题词	science & technology ; physical sciences
类目[WOS]	chemistry, inorganic & nuclear
研究领域[WOS]	chemistry
关键词[WOS]	barium complex ; ions
收录类别	SCI
语种	英语
WOS记录号	WOS:000257338400010
公开日期	2015-08-25
内容类型	期刊论文
源URL	[http://ir.opt.ac.cn/handle/181661/25200]
专题	西安光学精密机械研究所_先进光电与生物材料研发中心
作者单位	1.Shaanxi Normal Univ, Key Lab Appl Surface & Colloid Chem, Minist Educ, Sch Chem & Mat Sci, Xian 710062, Peoples R China 2.Chinese Acad Sci, State Key Lab Transient Opt Technol, Inst Adv Mat, Xian 710068, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Qiu-Ping,Zhang, Guo-Fang,She, Jiang-Bo. Syntheses, crystal structures and thermoanalyses of alkaline earth metal complexes derived from dinitropyridone[J]. journal of coordination chemistry,2008,61(16):2601-2614.
APA	Zhou, Qiu-Ping,Zhang, Guo-Fang,&She, Jiang-Bo.(2008).Syntheses, crystal structures and thermoanalyses of alkaline earth metal complexes derived from dinitropyridone.journal of coordination chemistry,61(16),2601-2614.
MLA	Zhou, Qiu-Ping,et al."Syntheses, crystal structures and thermoanalyses of alkaline earth metal complexes derived from dinitropyridone".journal of coordination chemistry 61.16(2008):2601-2614.