Hydrogen Bonded 3D Molecular Self Assembly Constructed from [(Ni(nicotinamide)_2(thiocyanate)_2(H_2O

来源 :结构化学 | 被引量 : 0次 | 上传用户:sunwen_fly
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
A new three-dimensional nickel(Ⅱ) hydrogen-bonded molecular self assembly containing [(Ni(nicotinamide)2(thiocyanate)2(H2O)2] complex has been synthesized and characterized by single-crystal X-ray diffraction,FTIR spectroscopy,thermal analysis and magnetic measurements.Structural analysis reveals that the complex crystallizes in triclinic space group P1(crystal data a = 7.5574,b = 8.2683,c = 9.0056 ?,α = 73.010,β = 69.698,γ = 66.51) and exhibits a distorted octahedral coordination sphere.Most interesting point in its structure is the involvement of sulphur atom of thiocyanate moiety in the trifurcated hydrogen bonding to build up the hydrogen-bonded self assembly.The magnetic behavior as determined by squid magnetometer(2~300 K temp.range) reveals dominating antiferromagnetic interaction followed by spin canting behavior below 20 K. A new three-dimensional nickel (Ⅱ) hydrogen-bonded molecular self assembly containing [Ni (nicotinamide) 2 (H2O) 2] complex has been synthesized and characterized by single-crystal X-ray diffraction, FTIR spectroscopy, thermal analysis and magnetic measurements. Structural analysis reveals that the complex crystallizes in triclinic space group P1 (crystal data a = 7.5574, b = 8.2683, c = 9.0056 ?,? = 73.010,? = 69.698,? = 66.51) and exhibits a distorted octahedral coordination sphere .Most interesting point in its structure is the involvement of sulfur atom of thiocyanate moiety in the trifurcated hydrogen bonding to build up the hydrogen-bonded self assembly. The magnetic behavior as determined by squid magnetometer (2 ~ 300 K temp. range ) reveals dominating antiferromagnetic interaction followed by spin canting behavior below 20 K.
其他文献
最近20年来,苏联科学院远东分院历史,考古与远东各民族研究所的考古学家、中世纪历史学家,在塞金、尼古拉耶夫、安那尼耶夫,拉佐夫、叶卡杰琳娜、诺沃果尔杰也夫、克拉斯诺
应用分层随机抽样的方法,对湖南省长沙地区20所不同阶层医疗机构进行调研,认为现阶段长沙市医后随访体制已初具模型,但实施力度与推广度明显不足,缺乏有效的医患沟通,随访现
一、内容新颖,紧跟时代步伐1、在分类法中,反映出新科学、新事物、新主题、新技术方法。将数理逻辑,辩证逻辑、模糊数学、系统论、控制论、信息论、计算机技术、分析综合方法,数
螺旋挤土桩是一种新型挤土桩,为研究该桩型的成桩机理、承载变形特性,自主研制了一台小型多功能模拟钻机,该钻机可方便模拟多种桩型的施工工艺。根据试验方案,利用该钻机制作
目前,国内医疗行业绩效考核普遍侧重于对科室效益工作量的考核。2013年,国家卫计委发布了《加强医疗卫生行风建设九不准》文件中明确指出,不准将医疗卫生人员个人收入与药品
目的:筛选适合分离纯化辣椒叶总黄酮的一种大孔树脂,同时用响应面法进行优化得到最佳纯化工艺。方法:采用热回流法提取辣椒叶总黄酮,以吸附率和解吸率为考察指标,考察6种不同
Organic molecular materials and devices are one of the most important research areas of chemistry in the 21st century and thus have received extensive attention
1)THERMODYNAMICS,KINETICS,AND STRUCTURAL CHEMISTRY(chemical equilibrium and thermodynamic parameters,calorimetry,nonequilibrium thermodynamics and dissipative s
提出一种新型以溴化锂溶液为工质的高温双再生器型吸收式热变换器(HDAHT)循环系统,该系统在高温单级吸收式热变换器循环中再生器和冷凝器之间增加了第二级再生器.HDAHT系统可
目的探讨鼻塞式持续呼吸道正压通气(CPAP)对新生儿呼吸窘迫综合征的治疗效果。方法 对50例呼吸窘迫综合征患儿应用鼻塞式CPAP,观察并分析评估疗效及不良反应。结果 50例患儿