【摘 要】
：
A novel transition metal ion bridging bis(diphosphopentamolybdates) has been synthesized and characterized by elemental analysis,IR spectrum,UV spectrum and sin
【机 构】
：
Institute of Natural Resources and Environmental Science,College of Environment and Planning,Henan U
论文部分内容阅读
A novel transition metal ion bridging bis(diphosphopentamolybdates) has been synthesized and characterized by elemental analysis,IR spectrum,UV spectrum and single-crystal X-ray diffraction.The single-crystal structure analysis shows that the compound consists of seven charge-compensating 2,2’-biimidazole cations (BIIM=2,2’-biimidazole) and one dumbbell-like [Mn(H2O)4(P2Mo5O23)2]10-heteropolyanion which is constructed by two [P2Mo5O23]6-clusters bridged through one [Mn(H2O)4]2+ cation.
A novel transition metal ion bridging bis (diphosphopentamolybdates) has been synthesized and characterized by elemental analysis, IR spectrum, UV spectrum and single-crystal X-ray diffraction. The single-crystal structure analysis shows that the compound consists of seven charge-compensating 2 , 2’-biimidazole cations (BIIM = 2,2’-biimidazole) and one dumbbell-like [Mn (H2O) 4 (P2Mo5O23) 2] 10-heteropolyanion which is constructed by two [P2Mo5O23] 6-clusters bridged through one [ Mn (H2O) 4] 2+ cation.
其他文献
广东省湛江市湖光公社临西大队知识青年陈公则、陈伟两同志在市三中毕业后,响应毛主席“知识青年到农村去”,“农村是一个广阔的天地,在那里是可以大有作为的”伟大号召,回
苏格兰时间5月24日至28日,首届圣安德鲁斯杯高尔夫业余精英赛苏格兰高尔夫文化之旅,在苏格兰爱姆伍德高尔夫学院正式拉开帷幕。来自郑州圣安德鲁斯、北京华彬、昆明春城、厦
昔日赌王,垂垂老矣赌王老了。89岁,在中国传统中被称为耄年,意思是年老昏乱。他暴怒、悲伤,但是只能独自忍受,“澳门赌王”何鸿试图像从前一样威严地掌控局面,
Former gambl
目的:给出火焰原子吸收分光光度法测定滤膜中镍的测量不确定度。方法:不确定度的主要来源为标准物质的不确定度,标准曲线的不确定度,以及测量重复性引起的不确定度,计算出各
【目的】将G250抗原cDNA片段转染入sp2/0细胞中并获得稳定表达,为G250基因疫苗研究提供实验工具。【方法】用脂质体转染法将鉴定好的重组质粒转染入sp2/0细胞中,经G418筛选得
In pH 4.5-7.0 Britton-Robinson buffer solution,furosemide (FUR) reacted with Pd (II) to form a 1:1 anionic chelate.This chelate could further react with such ba
通过研究前人成果以及自己的学习感触来说明其唱腔特点,再将豫剧唱法与民族声乐的演唱方法加以比较,揭示出两者各自的特点、内在的联系以及相互的借鉴与运用。
Through the
人生最难熬的十分钟是什么时候？对大脸兔而言，是快下班前的那十分钟。某天，肚子已经很饿的大脸兔正在煎熬地度过“最后十分钟”，突然QQ一阵闪动，栗子君激动地在Q上吼：快来，有好东西！
听神经瘤是主要起源于前庭神经的良性肿瘤,手术切除是其主要治疗方法之一。目前听神经瘤常用手术入路包括颅中窝入路、迷路入路和枕下-乙状窦后入路。手术入路的选择主要参考
血管内皮生长因子(vascular endothelial growth factor,VEGF)在肿瘤血管生成中起重要作用,并在多数肿瘤中表达上调,为使用针对VEGF的小干扰RNA(VEGF siRNA)治疗肿瘤提供了重