首页> 外文期刊>Zeitschrift fur Naturforschung, B. A Journal of Chemical Sciences >Syntheses and crystal structures of two new silver-organic frameworks based on N-pyrazinesulfonyl- glycine: weak Ag center dot center dot center dot O/N interaction affecting the coordination geometry
【24h】

Syntheses and crystal structures of two new silver-organic frameworks based on N-pyrazinesulfonyl- glycine: weak Ag center dot center dot center dot O/N interaction affecting the coordination geometry

机译:基于N-吡嗪磺酰基-甘氨酸的两种新的银有机骨架的合成和晶体结构:弱Ag中心点中心点中心点O / N相互作用影响配位几何

获取原文
获取原文并翻译 | 示例
           

摘要

Two new metal-organic frameworks, namely, [Ag-2(L)](n) (1) and {[Ag-2.5(L)(bpy)(2)]center dot(NO3)(0.5)center dot(H2O)(4.5)}(n) (2), where H2L = N-pyrazinesulfonyl-glycine and bpy = 4,4'-bipyridine, have been synthesized and characterized by single-crystal X-ray diffraction, IR spectroscopy, and elemental analysis. X-ray diffraction crystallographic analyses indicate that 1 displays a silver carboxylate-sulfonamide layer structure containing an uncommon heptanuclear [Ag-7] cluster wherein four silver(I) atoms form an Ag-4 plane with in a three-connected (6, 3) net. The molecular structure of 2 has three crystallographically independent two-coordinate Ag centers with an intersecting Ag-bpy chain structure in a six-connected (3, 6) or a four-connected (4, 4) topology. The L2- ligand serves as a mu(7)-(eta(2)-O,N),(eta(2)- O', N'), O, O '', O''', N, N '' ligand in 1 and as a mu(3)-(eta(2) -O, N), N, O' ligand in 2. In the crystal, a 3D supramolecular architecture is formed by coordinative bonding in 1, but through O-H center dot center dot center dot O bonding as well as pi center dot center dot center dot pi stacking in 2. The two compounds show a combination of coordinative bonds, ligand-supported Ag center dot center dot center dot Ag interactions and weak Ag center dot center dot center dot O/N coordinative interactions in the solid state.
机译:两个新的金属有机框架,即[Ag-2(L)](n)(1)和{[Ag-2.5(L)(bpy)(2)]中心点(NO3)(0.5)中心点( (H2O)(4.5)}(n)(2),其中H2L = N-吡嗪磺酰基-甘氨酸,bpy = 4,4'-联吡啶,已经合成并通过单晶X射线衍射,红外光谱和元素表征分析。 X射线衍射晶体学分析表明1显示了一个包含不常见的七核[Ag-7]簇的羧酸银-磺酰胺银层结构,其中四个银(I)原子形成一个Ag-4平面,其中三连接的(6,3 )网。 2的分子结构具有三个晶体学独立的两坐标Ag中心,在六连接(3,6)或四连接(4,4)拓扑结构中具有相交的Ag-bpy链结构。 L2-配体充当mu(7)-(eta(2)-O,N),(eta(2)-O',N'),O,O'',O''',N,N ''1中的配体,以及2中的mu(3)-(eta(2)-O,N),N,O'配体。在晶体中,通过1中的配位键形成3D超分子结构,但通过OH中心点中心点中心点O键键合以及pi中心点中心点中心点pi叠置为2。这两种化合物显示出配位键,配体支撑的Ag中心点中心点中心点Ag相互作用和弱Ag中心的组合点中心点中心O / N在固态中的协调相互作用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
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