机译:(3,3',4,4'-四甲基-1,1'-二磷铁茂铁-2-基)羧酸的晶体结构及其双-[W(CO)(5)]复杂中心点0.5C(5) H(12):1,1'-二磷二茂铁的构象
space group with two complex molecules and one pentane molecule in the unit cell. Cell parameters: a = 10.7070(2), b = 12.577(2), c = 13.239(3) Angstrom, alpha = 84.00(2), beta = 77.58(1), gamma = 66.06(1)degrees, V = 1591.0(5) Angstrom(3), and D-calc = 2.100 g cm(-3). The fully eclipsed conformation of the phospholyl rings with P ... P secondary bonding of 3.353(1) Angstrom is observed in 1 and a partially eclipsed conformation is found in 2. The 10 possible conformations of 1,1'-diphosphaferrocenes were described as the function of conformational parameter theta and observed geometry of the phospholyl rings.(7) We suppose that the earlier conclusions concerning the destabilizing nature of 1,1'-diphosphaferrocene conformations with a < 100 degrees cannot be considered as general. The mode of W-P coordination, the structural changes of 1 by W(CO)(5) coordination, the structural effect of phospholyl rings substitution by the -COOH group, and hydrogen bonds are analyzed. [References: 11]
空间群中结晶。像元参数:a = 10.7070(2),b = 12.577(2),c = 13.239(3)埃,alpha = 84.00(2),beta = 77.58(1),γ= 66.06(1)度,V = 1591.0 (5)埃(3),D-calc = 2.100 g cm(-3)。在1中观察到具有3.353(1)埃的P ... P次级键的完全黯淡的构象,在2中发现了部分暗淡的构象。1,1'-二磷酸二茂铁的10种可能构象被描述为(7)我们假设,关于小于100度的1,1'-二磷二茂铁构象的去稳定性质的早期结论不能被认为是一般的。分析了W-P配位的模式,W(CO)(5)配位的1的结构变化,-COOH基团取代的磷酰基环的结构效应以及氢键。 [参考:11]
1; 1 '-diphosphaferrocene conformation; P center dot center dot center dot p secondary bonding; Bis-w(co)(5)(1; 1 '-diphosphaferrocene system); Crystal structure;
机译:(3,3',4,4'-四甲基-1,1'-二磷铁茂铁-2-基)羧酸的晶体结构及其双-[W(CO)(5)]复杂中心点0.5C(5) H(12):1,1'-二磷二茂铁的构象
机译:1,1'-二磷酸二茂铁衍生物,用于标记具有生物学意义的分子。 4-氧代-4-(3,3',4,4'-四甲基-1,1'-二磷铁茂铁-2-基)丁酸及其bis-W(CO)(5)的X射线分子结构复杂
机译:3,3',4,4'-四甲基-1,1'-二磷二茂铁官能化的双-[Re-2(CO)(9)]配合物的合成和X射线结构,作为潜在的放射性药物和金属羰基标记
机译:从氨基酸合成的1,1-二苯基-2-(Tritylamino)酒精的晶体结构和包含能力
机译:HLa-a * 0201与黑素-a / maRT-126(27L)络合-35肽模拟物的晶体结构揭示了构象的异质性和T细胞识别的简并性高亮
机译:立体异构体2,2'-二苯甲酰基-3,3',4,4'-四甲基-1,1'-二磷杂二茂铁的合成及结构测定
机译:(mo2Fept(μ-sigma,sigma',sigma'':eta(5)-CC5H4)2(CO)4(HB(pz)3)2)(HB(pz)3 = Hydrotris(吡唑)的合成和晶体结构-1,1-YL)Norate):衍生自具有C(三键)mo(CO)2(HB(pz)3)取代基的1,1'-二茂烯衍生物的络合物。