Molecular and Crystal Structure of 7—Hydroxy—6,8—dimethoxyl—coumarin

1　ＩＮＴＲＯＤＵＣＴＩＯＮＣｏｕｍａｒｉｎｉｓｏｎｅｋｉｎｄｏｆｔｈｅｌａｃｔｏｎｅｏｆｏｒｔｈｏ ｈｙｄｒｏｘｙｌｃａｓｓｉａａｃｉｄ .Ｉｔｃｏｍｐｏｓｅｓａｌａｒｇｅｎｕｍｂｅｒｏｆｃｏｕｍａｒｉｃｄｅｒｉｖａｔｅｓｅｒｉｅｓｂｅｃａｕｓｅｏｆｔｈｅｄｉｆｆｅｒｅｎｔｐｏｓｉｔｉｏｎｓ,ｋｉｎｄｓａｎｄｎｕｍｂｅｒｓｏｆｔｈｅｓｕｂｓｔｉｔｕｅｎｔｇｒｏｕｐｓｗｈｉｃｈｌｉｎｋｕｐｗｉｔｈｔｈｅａｒｏｍａｔｉｃａｎｄｌａｃｔｏｎｅｒｉｎｇｓ[1 ,2 ,3] .Ｔｈｉｓｋｉｎｄｏｆｃｏｍｐｏｕｎｄｓｅｘ…     

Crystal and Molecular Structure of Quinide

ＣｒｙｓｔａｌａｎｄＭｏｌｅｃｕｌａｒＳｔｒｕｃｔｕｒｅｏｆＱｕｉｎｉｄｅＷＡＮＧＧａｎｇ－Ｌｉ；ＺＨＡＯＳｈｕ－Ｊｉｅ；ＣＨＥＮＤｅ－Ｃｈａｎｇ（ＮａｔｉｏｎａｌＩｎｓｔｉｔｕｔｅｆｏｒｔｈｅＣｏｎｔｒｏｌｏｆＰｈａｒｍａｃｅｕｔｉｃａｌａｎｄＢｉ...     

Synthesis and Molecular Structure of Binuclear Tin（Ⅳ）Complex Bridged by Terephthalate Anion

The title complex [Ph₃Sn(CH₃OH) (terephthalate) (CH₃OH) SnPh₃]·2CH₃OH was synthesized by the reaction of Ph₃SnCl with terephthalate in the molar ratio of 2:1 in methanol solution and characterized by elemental analysis, IR and ¹H NMR spectra, and the crystal structure was determined by X‐ray single crystal diffraction study. The crystal belongs to monoclinic with space group P2₁/n, a = 1.5199(5) nm, b = 0.9000(3) nm, c = 1.8206(6) nm, β= 113.970(5)°, Z = 2, V = 2.2755 (13) nm³, D_c= 1.413 g/cm³, μ = 1.146 mm^?1, F(000) = 980, R =0.0353, wR = 0.0606. In the crystals of complex, the tin atoms rendered five‐coordinate in a distorted trigonal bipyramidal structure.     

Crystal and Molecular Structure of Cyanuric Acid

ＣｒｙｓｔａｌａｎｄＭｏｌｅｃｕｌａｒＳｔｒｕｃｔｕｒｅｏｆＣｙａｎｕｒｉｃＡｃｉｄＣｈｅｎＣｈａｎｇ－Ｚｈａｎｇ；ＳｈｉＪｉａｎ－ＱｉｕＬｉｎＺｈｏｕ－Ｂｉｎ；ＧａｏＤｏｎｇ－Ｓｈｏｕ；ＨｕａｎｇＸｉａｏ－Ｙｉｎｇ；ＬｉＤｉｎｇ（ＦｕｊｉａｎＩｎｓ...     

Synthesis and Structure of 2—Acetylthiophene Thiosemicarbazone

ＳｙｎｔｈｅｓｉｓａｎｄＳｔｒｕｃｔｕｒｅｏｆ２－ＡｃｅｔｙｌｔｈｉｏｐｈｅｎｅＴｈｉｏｓｅｍｉｃａｒｂａｚｏｎｅ￥ＨｕａｎｇＴａｉ－Ｓｈａｎ；ＹａｏＺｈｉ－Ｙａｎｇ；ＺｈｏｕＺｈａｏ－Ｈｕｉ（ＤｅｐａｒｔｍｅｎｔｏｆＣｈｅｍｉｓｔｒｙ，Ｘｉａｍｅｎ...     

Crystal and Molecular Structure of Bis-N,N’(dithiodi-2,1-phennylene)benzamide

１ＩＮＴＲＯＤＵＣＴＩＯＮＢｉｓ Ｎ,Ｎ’（ｄｉｔｈｉｏｄｉ ２,１ ｐｈｅｎｎｙｌｅｎｅ）ｂｅｎｚａｍｉｄｅｈａｓｂｅｅｎｗｉｄｅｌｙｕｓｅｄｉｎｐｒｏ ｃｅｓｉｎｇｏｆｒｕｂｂｅｒａｓｐｅｐｔｉｚｅｒｆｏｒｐｒｏｄｕｃｉｎｇｆｒｅｅｒａｄｉｃａｌ...     

Crystal and Molecular Structure of OMPCTF

ＣｒｙｓｔａｌａｎｄＭｏｌｅｃｕｌａｒＳｔｒｕｃｔｕｒｅｏｆＯＭＰＣＴＦＷａｎｇＲｕｉ－Ｙａｏ；ＪｉｎＺｈｏｎｇ－Ｓｈｅｎｇ（ＬａｂｏｒａｔｏｒｙｏｆＲａｒｅＥａｒｔｈＣｈｅｍｉｓｔｒｙａｎｄＰｈｙｓｉｃｓ，ＣｈａｎｇｃｈｕｎＩｎｓｔｉｔｕｔｅｏｆＡ...     

The Crystal and Molecular Structure of Fargesin

ＴｈｅＣｒｙｓｔａｌａｎｄＭｏｌｅｃｕｌａｒＳｔｒｕｃｔｕｒｅｏｆＦａｒｇｅｓｉｎＭａＹｕ－Ｌｉａｎｇ；ＨａｎＧｕｉ－Ｑｉｕ（ＮａｔｉｏｎａｌＬａｂｏｒａｔｏｒｙｏｆＮａｔｕｒａｌａｎｄＢｉｏｍｉｍｅｔｉｃＤｒｕｇｓ，ＢｅｉｊｉｎｇＭｅｄｉｃａｌＵｎ...