摘要
合成了通式为（Ｃ１５Ｈ１５Ｎ２Ｏ３）ｘＲＥ（ＮＯ３）ｙ（Ｈ２Ｏ）ｚ（当ＲＥ＝Ｌａ～Ｐｒ时，ｘ＝３，ｙ＝６，ｚ＝０；ＲＥ＝Ｎｄ时，ｘ＝２，ｙ＝５，ｚ＝１；ＲＥ＝Ｓｍ～Ｌｕ，Ｙ时，ｘ＝２，ｙ＝５，ｚ＝０）的一系列１５种标题配合物．通过元素分析，ＩＲ，ＵＶ，１ＨＮＭＲ，ＴＧ－ＤＴＡ，摩尔电导和Ｘ射线粉末衍射分析等对配合物的性质进行了表征．认为可能生成包含一分子水的１１配位钕配合物的原因在于抗衡阳离子的空间效应。
The title complexes, represented by a general formula (C 15 H 15 N 2O 3) x RE(NO 3) y (H 2O) z , when RE=La～Pr, x=3, y=6, z=0; RE=Nd, x=2, y=5, z=1; RE=Sm～Lu,Y,x=2, y=5, z=0; have been synthesized by the reaction of rare earth nitrate with 2 [2 (3 nitro 4 methoxylphenyl)vinyl] 1 methylpyridinium nitrate in ethanol solution and have been characterized by the element analysis, IR, UV and 1H NMR spectra, TG DTA, molar conductance and X ray powder diffraction. The results show that the crystal form of Nd complex containing one molecule of water as a ligand is eleven coordinated and is different from the others. The reason is attributed to the stronger van der Waals force between the coordinated anion and the cation having the space effect.
出处
《兰州大学学报（自然科学版）》
CAS
CSCD
北大核心
1997年第1期83-87,共5页
Journal of Lanzhou University(Natural Sciences)
关键词
硝基
甲氧基苯基
乙烯基
稀土元素
配合物
吡啶
rare earth metal complex electrostatic force van der Waals force cation of 2 [2 (3 nitro 4 methoxylphenyl)vinyl] 1 methylpyridinium
