Synthesis and Crystal Structure of Pd（ptac—C,N）（acac—O,O）

1INTRODUCTIONTherehasbeenconsiderableattentionfocusedonthestudyofpalladiumcomplexinorganicsynthesis,catalyticprocesses,chemicalreactivity,spectroscopyandstructuralanalysisandfunctionalmaterials[1].Manypalladacycleshavebeenappliedinthepreparationofliquid-crystallinecomplexes[2],andsomeofthemshowantitumoractivity.Theincreasingimportanceofsuchcyclo-organometalliccomplexleadsustoinvestigatethecyclicPdcomplexeswithenhancedchemicalandthermalstability,fromwhichdetailedspectroscopicandstructuralc…     

Crystal Structure of 2—[（P,P—Diphenoxy）phosphono（p—methyl）benzyl]—1,2—

The crystal structure of the title compound 2-[(P, P-Diphenoxy)phosphono(p-methyl)benzyl]-1, 2-benzisoselenazol-3(2H)-one, C27H22NO4PSe, was determined by single crystal X-ray diffraction. It crystallizes in the triclinic system, space group P(No. 2) with Mr=534.41, a=9.761(2), b=10.304(2), c=13.396(3), α=110.97(3), β=107.70(3). γ=90.02(3)°, V=1190(1) 3, Z=2, Dx=1.492 g/cm3, λ=0.71073, μ=1.6596 mm-1 and F(000)=544. The structure was solved by direct methods. The final R factor is 0.068 and Rw is 0.074 for 2500 unique observed reflections [I≥3σ(I)]. The results presented herein indicate that the selenium-containing bicyclic moiety is a coplanar structure and that two adjacent molecules are symmetrically linked to each other forming a dimer through the Se(1c)...O=P(1) bonding interaction with an intermolecular Se(1c)...O distance of 2.797 .     

Synthesis and Crystal Structure of Tetra（diisopropylamido—N）ytterbium Mono（tetrahydrofuran—O）lithium

1 INTRODUCTION The lanthanide amide complexes are excellent synthetic precursors for lanthanide derivatives, par- ticularly in the reactions involving protonic rea- gents[1]. A few types of lanthanide amide complexes, from homoleptic three- to four-coordinate, have been known for some time[2～4]. Recently, we begin to examine the utility of amide with less steric bulk, such as diphenylamide and diisopropyamide, as li- gands to synthesize homoleptic lanthanide amide complexes. For diphen…     

Crystal Structure of N－（N－Phenylthiazotone）imino－O－ethyl－N－isopropylaminothiophosphate

ＣｒｙｓｔａｌＳｔｒｕｃｔｕｒｅｏｆＮ－（Ｎ－Ｐｈｅｎｙｌｔｈｉａｚｏｔｏｎｅ）ｉｍｉｎｏ－Ｏ－ｅｔｈｙｌ－Ｎ－ｉｓｏｐｒｏｐｙｌａｍｉｎｏｔｈｉｏｐｈｏｓｐｈａｔｅ￥ＹａｎｇＨｕａ－Ｚｈｅｎｇ；ＬｉｕＨｕａ－Ｙｉｎ；ＷｕＹｅ（Ｉｎｓｔｉｔｕｔｅｏｆ...     

Synthesis, Crystal Structure and Antimicrobial Study of N, N,N＇-Tris（3- aminopropyl）ethylenediamine Copper（Ⅱ） Diperchlorate

1 INTRODUCTION The researches on organic polyamines are currently of great interest because of their potential applications as useful organic ligands, in which the amine nitrogen atoms have strong coordination ability to the transition metal ions. Their transition metal complexes play an excellent role in catalysis and the mimic studies on superoxide dismutase and chlorophyll[1～6]. N,N,N?,N?-Tetrakis(3-ami- nopropyl) ethylenediamine has been extensively stu- died[7～9], but few new ineq…     

Synthesis and Crystal Structure of Tri—（2—mercaptopyridine N—oxide）bis（dimethyl sulfoxide） Dysprosium（Ⅲ）

A range of rare earth metal complexes of 2-mercaptopyridine N-oxide (Hmpo) have been synthesized, and studied by elemental analysis and IR spectroscopic technique. Crystal structure of Dy(mpo)3(DMSO)2 (DMSO = dimethyl sulfoxide) has been determined. The complex crystallizes in the triclinic system, space group Pī with lattice parameters: a = 9.602(3), b = 9.803(3), c = 15.498(5)A, α= 89.51(1), β= 85.73(1), γ= 62.99(1)°, Dc = 1.787 g/cm3, C19H24N3O5S5Dy, Mr = 697.21, Z = 2, F(000) = 690, μ = 3.321mm-1, the final R = 0.0237 and wR = 0.0587 for 4116 reflections with I>σ2(I). The coordination number of dysprosium Ⅲ is eight, and its coordination geometry is a somewhat distorted square antiprism with O(3), O(4), O(5), S(3) and O(1), O(2), S(1), S(2) at the tetragonal bases (dihedral angle between their mean planes is 2.9(1)0). Around the Dy atom, three five-membered ring planes (Dy, O, N, C, S) make the dihedral angles of 74.42, 11.31 and 83.72, respectively.