The title compound,[Cu4I4（C4H8N4）4],has been synthesized and characterized by single-crystal X-ray diffraction analysis.It crystallizes in monoclinic,space group Pbca,with a=18.1851（10）,b=9.3697（5）,c=19.8034（10...The title compound,[Cu4I4（C4H8N4）4],has been synthesized and characterized by single-crystal X-ray diffraction analysis.It crystallizes in monoclinic,space group Pbca,with a=18.1851（10）,b=9.3697（5）,c=19.8034（10）A,V=3374.3（3）A^3,C16H32Cu4I4N16,Mr=1210.34,Z=4,Dc=2.383 g/cm^3,μ=6.183 mm^-1,F（000）=2272,S=1.032,the final R=0.0309 and wR=0.1180 for 3854 observer reflections（I〉2σ（I））.The structure of the title compound consists of tetranuclear copper cluster units bridged by the halogen atoms with the 3,5-dimethyl-4-aminotriazole ligands coordinated to the metal ions through the triazole nitrogen atoms.The luminescent property of 1 was also studied.展开更多
This paper describes a very simple, efficient synthesis of quinazolinones and chromeno[d]pyrimidinones from the reaction of aryl aldehydes, urea/thiourea and active methylene compounds（dimedone/4-hydroxycoumarin） us...This paper describes a very simple, efficient synthesis of quinazolinones and chromeno[d]pyrimidinones from the reaction of aryl aldehydes, urea/thiourea and active methylene compounds（dimedone/4-hydroxycoumarin） using nano-sized CuI particles under solvent-free conditions. The highlights of this new method are based on using an effective and recyclable catalyst, affording high yields of products,mild reaction conditions, facile work-up and purification.展开更多
A one dimensional coordination polymer, [(C7H18N)(Ag2I3)]n((C7H18N)+=Methyltriethylammonium) has been successfully synthesized and characterized by X-ray single-crystal diffraction method. Structure analysis shows tha...A one dimensional coordination polymer, [(C7H18N)(Ag2I3)]n((C7H18N)+=Methyltriethylammonium) has been successfully synthesized and characterized by X-ray single-crystal diffraction method. Structure analysis shows that the compound consists of organic cations(Methyltriethylammonium) and inorganic anion chains (Ag2I3)n-. The inorganic moiety consists of AgI4 tetrahedron, which shares the same edges with adjacent AgI4 tetrahedrons to form one-dimensional infinite double chains along a-axis. There exists weak interaction among Ag…Ag atoms in the crystal. Anion chains are surrounded by Methyltriethylammonium cations. Anion chains and cations are in combination with each other by static attracting forces in the crystal to form so-called organic-inorganic hybrid structure. According to the crystal structure data, quantum chemistry calculation with DFT on B3LYP level was used to reveal the electronic structure of title compound. CCDC: 254288.展开更多
基金supported by the National Natural Science Foundation of China (20873150, 20821061, and 50772113)Chinese Academy of Sciences (KJCX2-YW-M05)+1 种基金the Natural Science Foundation of Fujian Province (2006F3135, 2006F3141, 2007HZ0001-1)the Fund of Fujian Key Laboratory of Nanomaterials (2006L2005)
文摘The title compound,[Cu4I4（C4H8N4）4],has been synthesized and characterized by single-crystal X-ray diffraction analysis.It crystallizes in monoclinic,space group Pbca,with a=18.1851（10）,b=9.3697（5）,c=19.8034（10）A,V=3374.3（3）A^3,C16H32Cu4I4N16,Mr=1210.34,Z=4,Dc=2.383 g/cm^3,μ=6.183 mm^-1,F（000）=2272,S=1.032,the final R=0.0309 and wR=0.1180 for 3854 observer reflections（I〉2σ（I））.The structure of the title compound consists of tetranuclear copper cluster units bridged by the halogen atoms with the 3,5-dimethyl-4-aminotriazole ligands coordinated to the metal ions through the triazole nitrogen atoms.The luminescent property of 1 was also studied.
基金the financial support from the Research Council of East Tehran Branch, Islamic Azad University
文摘This paper describes a very simple, efficient synthesis of quinazolinones and chromeno[d]pyrimidinones from the reaction of aryl aldehydes, urea/thiourea and active methylene compounds（dimedone/4-hydroxycoumarin） using nano-sized CuI particles under solvent-free conditions. The highlights of this new method are based on using an effective and recyclable catalyst, affording high yields of products,mild reaction conditions, facile work-up and purification.
文摘A one dimensional coordination polymer, [(C7H18N)(Ag2I3)]n((C7H18N)+=Methyltriethylammonium) has been successfully synthesized and characterized by X-ray single-crystal diffraction method. Structure analysis shows that the compound consists of organic cations(Methyltriethylammonium) and inorganic anion chains (Ag2I3)n-. The inorganic moiety consists of AgI4 tetrahedron, which shares the same edges with adjacent AgI4 tetrahedrons to form one-dimensional infinite double chains along a-axis. There exists weak interaction among Ag…Ag atoms in the crystal. Anion chains are surrounded by Methyltriethylammonium cations. Anion chains and cations are in combination with each other by static attracting forces in the crystal to form so-called organic-inorganic hybrid structure. According to the crystal structure data, quantum chemistry calculation with DFT on B3LYP level was used to reveal the electronic structure of title compound. CCDC: 254288.
