The title compound was prepared and characterized.Its crystal Structure was determined by X—ray diffraction analysis,and consists of segregated cation and an- ion stacks in the perpendicular directions.Crystal data:m...The title compound was prepared and characterized.Its crystal Structure was determined by X—ray diffraction analysis,and consists of segregated cation and an- ion stacks in the perpendicular directions.Crystal data:monoclinic,P2_1/c,Mr=765.21, a=7.882(2)b=15.526(4),c=13.736(2)β=99.87(2)~0,V=1656.0(6)~3,Ac =1.53g/cm^3,Z=2,F(000)=780,R=0.040 and R_w=0.056.展开更多
一、引言 有限元一体化处理系统FECPS(Finite Element Concertrate Process System),是国家攻关项目《风机、冷冻机、压力容器CAD》中的一个重要部分。我们在充分剖析DDM-FEM软件包和有限元分析(SAP6)程序包的基础上,编写了近五千条DAL...一、引言 有限元一体化处理系统FECPS(Finite Element Concertrate Process System),是国家攻关项目《风机、冷冻机、压力容器CAD》中的一个重要部分。我们在充分剖析DDM-FEM软件包和有限元分析(SAP6)程序包的基础上,编写了近五千条DAL和Fortran程序,将前置处理,分析部分,后置处理三大部分成功地融为一体,实现有限元分析处理的一体化,为机械产品的设计提供了有力的工具。展开更多
Aryl-substituted sodium 1,2-diphosphacyclopentadienides Na(P_(2)C_(3)R_(3))(R=Ph,4-Me-C_(6)H_(4),4-Cl-C_(6)H_(4))(1a-c)react with[FeCp(η^(6)-C_(6)H_(5)CH_(3))][PF6]to give heteroleptic 3,4,5-triaryl-1,2-diphosphaferr...Aryl-substituted sodium 1,2-diphosphacyclopentadienides Na(P_(2)C_(3)R_(3))(R=Ph,4-Me-C_(6)H_(4),4-Cl-C_(6)H_(4))(1a-c)react with[FeCp(η^(6)-C_(6)H_(5)CH_(3))][PF6]to give heteroleptic 3,4,5-triaryl-1,2-diphosphaferrocenes[FeCp(η^(5)-P_(2)C_(3)R_(3))](2a-c)in 71-78%yield.The structures of 2a-c were confirmed by NMR,UV-Vis spectroscopy and X-ray structure analysis,and supported by DFT calculations.Electrochemical studies of 2a-c in CH3CN demonstrate a pronounced reversible one-electron oxidation,while in the solid state,all 3,4,5-triaryl-1,2-diphosphaferrocenes show fully reversible oxidation and reduction waves,which indicates the stability of the oxidized form.Regardless of the substituent(R=Ph,4-Me-C_(6)H_(4),4-Cl-C_(6)H_(4)),the studied 1,2-diphosphaferrocenes have similar oxidation and reduction potentials.展开更多
文摘The title compound was prepared and characterized.Its crystal Structure was determined by X—ray diffraction analysis,and consists of segregated cation and an- ion stacks in the perpendicular directions.Crystal data:monoclinic,P2_1/c,Mr=765.21, a=7.882(2)b=15.526(4),c=13.736(2)β=99.87(2)~0,V=1656.0(6)~3,Ac =1.53g/cm^3,Z=2,F(000)=780,R=0.040 and R_w=0.056.
文摘一、引言 有限元一体化处理系统FECPS(Finite Element Concertrate Process System),是国家攻关项目《风机、冷冻机、压力容器CAD》中的一个重要部分。我们在充分剖析DDM-FEM软件包和有限元分析(SAP6)程序包的基础上,编写了近五千条DAL和Fortran程序,将前置处理,分析部分,后置处理三大部分成功地融为一体,实现有限元分析处理的一体化,为机械产品的设计提供了有力的工具。
基金funded by the grant of the Russian Science Foundation,grant number 21-73-10204The authors gratefully acknowledge the Assigned Spectral-Analytical Center of FRC Kazan Scientific Center of RAS(NMR,X-ray,electrochemical measurements)and the scholarship program of the German Academic Exchange Service(DAAD,X-ray structure determination of 2b)Y.S.G.is grateful for the support of the Ministry of Science and Higher Education of the Russia Federation.
文摘Aryl-substituted sodium 1,2-diphosphacyclopentadienides Na(P_(2)C_(3)R_(3))(R=Ph,4-Me-C_(6)H_(4),4-Cl-C_(6)H_(4))(1a-c)react with[FeCp(η^(6)-C_(6)H_(5)CH_(3))][PF6]to give heteroleptic 3,4,5-triaryl-1,2-diphosphaferrocenes[FeCp(η^(5)-P_(2)C_(3)R_(3))](2a-c)in 71-78%yield.The structures of 2a-c were confirmed by NMR,UV-Vis spectroscopy and X-ray structure analysis,and supported by DFT calculations.Electrochemical studies of 2a-c in CH3CN demonstrate a pronounced reversible one-electron oxidation,while in the solid state,all 3,4,5-triaryl-1,2-diphosphaferrocenes show fully reversible oxidation and reduction waves,which indicates the stability of the oxidized form.Regardless of the substituent(R=Ph,4-Me-C_(6)H_(4),4-Cl-C_(6)H_(4)),the studied 1,2-diphosphaferrocenes have similar oxidation and reduction potentials.
