...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >The reaction of ytterbium with N-iodo-triphenylphosphaneimine. Crystal structures of [Yb2I(THF)(2)(NPPh3)(4)]center dot 2 THF, [YbI2(HNPPh3)(DME)(2)], and [I{YbI2(DME)(2)}(2)(mu-DME)] [German]
【24h】

The reaction of ytterbium with N-iodo-triphenylphosphaneimine. Crystal structures of [Yb2I(THF)(2)(NPPh3)(4)]center dot 2 THF, [YbI2(HNPPh3)(DME)(2)], and [I{YbI2(DME)(2)}(2)(mu-DME)] [German]

机译：with与N-碘-三苯基膦亚胺的反应。 [Yb2I（THF）（2）（NPPh3）（4）]中心点2 THF，[YbI2（HNPPh3）（DME）（2）]和[I {YbI2（DME）（2）}（2）的晶体结构）（mu-DME）[德语]

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

When treated with ultrasound, the reaction of ytterbium powder with INPPh3 in tetrahydrofuran leads to [YbI2(THF)(4)] and to the mixed-valence phosphoraneiminato complex [Yb2I(THF)(2)(NPPh3)(4)].2THF (1), which forms red single-crystals. In the analogous reaction in 1,2-dimethoxyethane (DME) only the ytterbium(II) iodide solvates [YbI2(HNPPh3)(DME)(2)] (2) and [{YbI2(DME)(2)}(2) (mu-DME)] (3) can be isolated, which form yellow single crystals. All compounds were characterized by crystal structure analyses. 1: Space group P (1) over bar, Z = 2, lattice dimensions at -80 degrees C: a = 1337.6(5), b = 1389.6(5), c = 2244.2(17) pm; alpha = 86.11(7)degrees, beta = 88.06(7)degrees, gamma = 88.63(4)degrees; R = 0.0759. In 1 the two ytterbium atoms are connected via the N atoms of two phosphoraneiminato groups (NPPh3-) to form a planar Yb2N2 four membered ring. The structure can also be described as an ion pair consisting of [YbI(THF)(2)](+) and [Yb(NPPh3)(4)](-). 2: Space group P2(1), Z = 2, lattice dimensions at -80 degrees C: a = 811.9(1), b = 1114.0(1), c = 1741.3(1) pm; beta = 95.458(5)degrees; R = 0.0246. 2 forms molecules in which the ytterbium atom is coordinated in a pentagonal-bipyramidal fashion with the iodine atoms in the axial positions. The O atoms of the two DME-chelates and the N atom of the phosphaneimine ligand HNPPh3 are in the equatorial positions. 3. Space group P (1) over bar, Z = 2, lattice dimensions at -70 degrees C: a = 817.5(1), b = 1047.7(1), c = 1115.5(2) pm; alpha = 90.179(10)degrees, beta = 97.543(15)degrees, gamma = 91.087(12)degrees; R = 0.0317. 3 has a dimeric molecular structure, in which the two fragments {YbI2(DME)(2)} are connected centrosymmetrically via a mu-DME bridge. As in 2, the ytterbium atoms are coordinated in a pentagonal-bipyramidal fashion with the iodine atoms in the axial positions, as well as with the two DME chelates and with one O atom each of the mu-DME ligand in the equatorial positions. [References: 24]
机译：超声处理时，of粉与INPPh3在四氢呋喃中的反应导致[YbI2（THF）（4）]和混合价磷亚氨基络合物[Yb2I（THF）（2）（NPPh3）（4）]。2THF （1），形成红色单晶。在1,2-二甲氧基乙烷（DME）中的类似反应中，仅碘化y（II）溶剂化物[YbI2（HNPPh3）（DME）（2）]（2）和[{YbI2（DME）（2）}（2） （mu-DME）]（3）可以被分离，形成黄色单晶。所有化合物均通过晶体结构分析来表征。 1：在P上的空间组P（1），Z = 2，在-80摄氏度下的晶格尺寸：a = 1337.6（5），b = 1389.6（5），c = 2244.2（17）pm; alpha = 86.11（7）度，beta = 88.06（7）度，gamma = 88.63（4）度; R ＝ 0.0759。在1中，两个two原子通过两个磷亚氨基基团（NPPh3-）的N个原子连接，形成一个平面Yb2N2四元环。该结构也可以描述为由[YbI（THF）（2）]（+）和[Yb（NPPh3）（4）]（-）组成的离子对。 2：空间群P2（1），Z = 2，-80度时的晶格尺寸：a = 811.9（1），b = 1114.0（1），c = 1741.3（1）pm; beta = 95.458（5）度; R ＝ 0.0246。 2形成分子，其中molecules原子以五角双锥体方式与轴向上的碘原子配位。两个DME螯合物的O原子和膦亚胺配体HNPPh3的N原子位于赤道位置。 3.棒上的空间组P（1），Z = 2，-70度下的晶格尺寸：a = 817.5（1），b = 1047.7（1），c = 1115.5（2）pm; alpha = 90.179（10）度，beta = 97.543（15）度，gamma = 91.087（12）度; R ＝ 0.0317。图3具有二聚体分子结构，其中两个片段{YbI2（DME）（2）}通过mu-DME桥中心对称地连接。如在图2中，the原子以五角双锥体的方式与在轴向位置上的碘原子以及在赤道位置上的两个DME螯合物和每个μ-DME配体与一个O原子配位。 [参考：24]

著录项

相似文献

  • 外文文献
  • 中文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号