机译:SB [N(H)(C(6)H(2)(T)BU(3))](3)和BI [N(H)(C(6)H(2)(T)的合成和结构BU(3))](3)-超级替代的空间极限的含义
, a = 11.491(5) Angstrom, b = 24.652(7) Angstrom, c = 10.002(5) Angstrom, alpha = 98.38(3)degrees, beta = 96.44(5)degrees, gamma = 77.25(3)degrees, V = 2724(2) Angstrom(3), D-c 1.101 Mg/m(3), Z = 2, R = 0.0547; crystal data for C54H90BiN3, M = 990.27, space group
, a = 11.511(5) Angstrom, b = 24.785(15) Angstrom, c = 9.981(5) Angstrom, alpha = 98.06(5)degrees, beta = 96.50(4)degrees, gamma = 77.40(5)degrees, V = 2742(2) Angstrom(3), D-c = 1.200 Mg/m(3), Z = 2, R = 0.0619]. The compounds bear the ''bulky'' 2,4,6-tri-tert-butylphenyl substituent (known as supermesityl or Mes*), and their formation is considered in the context of the same reactions for PCl3 and AsCl3, which have been previously shown to produce the aminoiminopnictine structures [N(H)(C(6)H(2)(t)Bu(3))]P = N(C(6)H(2)(t)Bu(3)) and [N(H)(C(6)H(2)(t)Bu(3))]As = N(C(6)H(2)(t)Bu(3)). The observations establish the limits of the steric control by the supermesityl substituent and provide qualitative support for the thermodynamic significance of substituent steric strain. [References: 74]
上,a = 11.491(5)埃,b = 24.652(7)埃,c = 10.002(5)埃,alpha = 98.38(3)度,beta = 96.44(5)度,γ= 77.25 (3)度,V = 2724(2)埃(3),Dc 1.101 Mg / m(3),Z = 2,R = 0.0547; C54H90BiN3的晶体数据,M = 990.27,空间群
,a = 11.511(5)埃,b = 24.785(15)埃,c = 9.981(5)埃,alpha = 98.06(5)度,β= 96.50(4)度,γ= 77.40(5)度,V = 2742(2)埃(3),Dc = 1.200 Mg / m(3),Z = 2,R = 0.0619]。该化合物带有“大体积” 2,4,6-三叔丁基苯基取代基(称为超甲磺酰基或Mes *),并且在与PCl3和AsCl3相同的反应中考虑了它们的形成。先前显示会产生氨基亚胺古丁结构[N(H)(C(6)H(2)(t)Bu(3))] P = N(C(6)H(2)(t)Bu(3))并且[N(H)(C(6)H(2)(t)Bu(3))As = N(C(6)H(2)(t)Bu(3))。这些发现建立了由超甲磺酰基取代基控制空间的极限,并为取代基空间应变的热力学意义提供了定性支持。 [参考:74]
Ray crystal-structure; Coordinated phosphorus-compounds; Main-group elements; X-ray; Double-bond; Molecular-structures; Nitrogen bond; 1st compound; = p; Chemistry;
机译:SB [N(H)(C(6)H(2)(T)BU(3))](3)和BI [N(H)(C(6)H(2)(T)的合成和结构BU(3))](3)-超级替代的空间极限的含义
机译:立体拥挤的二膦甲烷配体:分子结构,紫外光电子能谱和(Bu2PCH2PBu2)-Bu-t-Bu-t及其相关物种的常规合成
机译:双(叔丁基)(2-硫代-1,3-二硫代-4,5-二硫代巯基)锡烷,(Bu2Sn)-Sn-t(dmit)和双(叔丁基)(2-氧代- 1,3-二硫代-4,5-二硫代呋喃锡锡烷,(Bu2Sn)-Sn-t(dmio):聚合(Bu2Sn)-Sn-t(dmit)的晶体结构在120 K时有两个But2Sn多晶型物(dmio)。聚合物和环状四聚体。
机译:无线USB-FM发射器使用RoHM Bu9458KV在VQFP-64包装中的半导体芯片
机译:普通话中的复杂谓词:三种类型的Bu-Yu结构。
机译:双(二丁基二硫代氨基甲酸酯)锌(II)的合成和结构:Zn2 (n-Bu)2NCSS 4
机译:双(二丁基二硫代氨基甲酸酯)锌(II)的合成和结构:Zn2 [(n-Bu)2NCss] 4
机译:叔丁基镓 - 锑化合物的合成与表征; t-Bu3Gasb(sime3)3,t-Bu2Gasb(sime3)2和t-Bu2Gasb(sime3)Ga(t-Bu)2Cl的X射线晶体结构,镓 - 锑混合桥化合物的第一个例子