【摘 要】
：
A new terbium(Ⅲ) complex Tb2(C15H11O3)6(phen)2 has been synthesized with 2-(4-methylbenzoyl)benzoic acid and 1,10-phenanthroline as ligands.Crystal data for th
【机 构】
：
Key Laboratory of Functional Metal-organic Compounds of Hunan Province & Key Laboratory of Functiona
论文部分内容阅读
A new terbium(Ⅲ) complex Tb2(C15H11O3)6(phen)2 has been synthesized with 2-(4-methylbenzoyl)benzoic acid and 1,10-phenanthroline as ligands.Crystal data for the complex are as follows:monoclinic,space group P21/n,a =15.0786(6),b =13.5762(5),c =22.9683(9) (A),β =104.130(4)°,V =4559.6(3) (A)3,Dc =1.540 g/cm3,Z =2,μ(MoKa) =1.615 mm-1,F(000) =2136,the final R =0.0528 and wR=0.0740.The Tb(Ⅲ) ion is coordinated by eight atoms to give a distorted square antiprism coordination geometry.The complex shows four fluorescence emission bands arising from the transitions of Tb3+∶5D4 → 7F6 (490 nm),5D4 → 7F5 (546 nm),5D4 → 7F4 (588 nm) and 5D4 → 7F3 (622 nm).The complex is an antiferromagnet in the range of300～2 K.Also reported in the paper is the thermal stability property of the title complex.
其他文献
While rare-earth borides represent a class of important materials in modem industries,there are few fundamental researches on their electronic structures and ph
请下载后查看，本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
研究结果表明,高寒山区玉米地膜覆盖对增产有明显效果,其原因主要表现在,增温、增湿、增叶、增穗、增粒,并通过偏回归系数测定,确认高寒山区地膜覆盖后增产的主要效应是增株
大豆施用微量元素已取得许多成果。但目前在生产中应用的微量元素多为无机盐单一元素形态。为了扩大肥料的施用途径,稳定肥料的增产效果,拓宽应用地区,黑龙江省农科院士肥所
Novel organic compounds (1～8) were designed,synthesized and characterized by IR,1H NMR,H RMS,and single-crystal X-ray crystallography.The anticancer activities o
一、转变观念,树立服务育人的思想rn后勤服务工作主要是通过广大后勤人员的辛勤劳动,为大家提供维修、餐饮、水电等保障,为广大师生创造一个良好的学习、工作、生活的校园环
中国高校后勤改革走过的三十年历程里,大概可划分为三个阶段.从1978上海同济大学后勤从伙食承包开始到1989年进入十年的改革探索和理论研究时期,可以归结为第一阶段--后勤改
在甘薯贮藏过程中,由于块根化学抑芽价格昂贵,改用漫射光能较好地解决这个问题。不同强度的光照,抑芽效果不等,光照强度越大,效果越好。当光照为1430勒克司时,抑芽率为99.1％;
In this text,we present researches on the synthesis of polyoxo-titanium clusters (PTCs) by the use of gadolinium pivalate precursor.During the synthesis process
In order to investigate directionality of thermal infrared emission from crop canopies, a wide-angle thermal video camera (INFRAMETRICS) equipped with an 80?FO