[Cu(2,2''-bpy)Cl2]和[Cu(1,10-phen)C12]在多金属氧酸盐上的多相化:选择性氧化四氢化萘的新催化剂

Mononuclear Cu(II)bipyridine(1)and phenantroline complexes(2)were synthesized and immobilized by different procedures on H3PW12O40 polyoxometalate(POM).Characterization by XRD and SEM-EDX were performed to assess the preservation of the Keggin structure and stoichiometry of the complex.The immobilized complexes were tested as heterogeneous catalysts for the partial oxidation of tetralin(1,2,3,4-tetrahydronaphthalene)using hydrogen peroxide as oxidant in acetonitrile/water as solvent.[Cu(2,2'-bpy)Cl][H2PW12O...     

Synthesis and characterization of a new dimeric polyoxometalate based on Anderson-type polyoxoanions and a trinuclear lanthanide coordination complex

An unusual compound, H₅[(C₆NO₂H₄)₄(H₂O)₁₅Nd₃][IMo₆O₂₄]₂·13.5H₂O (1) has been synthesized and characterized by elemental analysis, IR spectroscopy, thermogravimetric analysis (TGA), and single crystal X-ray diffraction. Compound 1 consists of two [IMo₆O₂₄]^5? units joined by a trinuclear neodymium-pyridine-4-carboxylic acid complex, resulting in a dimeric polyoxometalate, which further interact via weak intermolecular interactions to form a three-dimensional supramolecular framework with channels. To the best of our knowledge, no analogous dimeric polyoxometalate structure composed of an Anderson-type polyoxometalate has been reported in the literature.     

多金属氧酸盐催化烯烃环氧化研究进展

综述了以过氧化氢为氧源,多金属氧酸盐催化烯烃环氧化的研究进展,尤其是针对基于多金属氧酸盐的反应控制相转移催化体系近年来的研究进展进行了详细阐述.     

水体系中含Mn~Ⅲ离子多酸化合物的原位合成、结构及性质研究

采用常规水溶液法在低热环境下得到了一种新的基于砷钨酸和Mn~Ⅲ的夹心型化合物,该化合物为单斜晶系,空间群为P2_1/c,晶胞参数为a=2.041 26(8)nm,b=3.227 58(8)nm,c=1.325 35(5)nm,β=94.427(3)°,V=8.705 8(5)nm~3,Z=4;分子式为(NH_4)_(10)[(MnH_2O)_2WO_2(AsW_9O_(33))_2]·3.5H_2O.性质分析表明,标题化合物对Hela细胞具有较高的抗肿瘤活性,可以作为潜在的抗肿瘤药物模型.     

由四核Fe(Ⅱ)金属簇和三缺位Keggin型磷钨酸盐构筑的夹心型多金属氧酸盐(英文)

利用水热法合成了由四核FeⅡ簇和三缺位Keggin型磷钨酸盐共同构筑而成的夹心型多金属氧酸盐(H2dien)4H2[Fe4(H2O)2(α-B-PW9O34)2]·8H2O(1)(dien=二乙烯三胺);采用红外光谱、X-射线单晶衍射定性表征了产物的结构,利用元素分析测定了其组成.结果表明,化合物1属于三斜晶系,P-1空间群.其多阴离子[Fe4(H2O)2(α-B-PW9O34)2]10-由两个[α-B-PW9O34]9-单元通过Fe4O14(H2O)2簇连接而成;Fe2+离子采用六配位的八面体几何构型.同时,质子化的H2dien2+充当抗衡阳离子,经氢键与杂多阴离子[Fe4(H2O)2(α-BPW9O34)2]10-相互作用形成三维结构.     

Decatungstate Incorporated Metal-organic Framework for Degradation of Rhodamine B under Sunlight Irradiation

A new decatungstate incorporated metal-organic framework {[Co2（bpdo）5（H2O）n- W10O32]}n·nbpdo·2nH2O（1, bpdo = 4,4＇-bis（pyridine-N-oxide） has been synthesized through a one-step hydrothermal reaction and characterized by elemental analyses, IR, solid UV-vis absorption spectra, and single-crystal X-ray diffraction. The structural analysis indicates that 1 displays a one-dimensional ladder structure with [W10O32]4- as guest incorporated by electrostatic interaction. The photocatalytic property of the framework toward a rhodamine B （RhB） solution was also investigated. The results indicated that compound 1 possesses high photocatalytic activity in heterogeneous system under sunlight irradiated.     

多金属氧酸盐杂化催化剂光催化降解有机杀虫剂六氯苯

 通过自组装技术制备了一系列多金属氧酸盐-有机胺-分子筛杂化催化剂K5［M(H2O)PW11O39］-(EtO)3Si(CH2)3NH2-MCM-48,用XRD,ICP-AES,UV/DRS,FT-IR,31P MAS NMR和N2吸附等手段对其组成和结构进行了表征,并以有机杀虫剂六氯苯为探针分子考察了其光催化活性. 结果表明,多金属氧酸盐杂化催化剂的光催化降解活性高于直接光解,能有效地降解污水中的六氯苯,且易分离,可循环使用.     

穴状稀土杂多化合物的生物活性研究

报道了以「ＴｂＡｓ４Ｗ４０Ｏ１４０」＾２５－及「ＰｒＳｂ９Ｗ２１Ｏ８６」＾１６－为代表的穴状稀土杂多阴离子的体外、体内抗肿瘤活性及体内抗ＲａｕｓｃｈｅｒＭｕＬＶ和ＬＰ－ＢＭ５ＭｕＬＶ病毒活性。以上化合物对Ｈ２２,Ｂ１６,ＨＬ－６０及活体直肠癌、乳腺癌细胞有抑制作用,能减轻荷瘤鼠的瘤重及延长期存活时间及荷病毒鼠的脾重。     

Synthesis,Spectroscopic Characterization and Antitumor Activity in vitro of Organometallo Substituted Polyoxotungstates（RM）3P2W15—O59^n—（RM=CpTi,CpZr,C4H7O2Sn or C5H9O2Sn）

Tetrabutylammonium or potassium salts of organometalllic derivatives of lacunary polyanion (RM)3P2W15O59^n-(RM=CpTi,CpZr,C4H7O2Sn or C5H9O2Sn) have been prepared and structurally characterized by elemental analysis,IR,UV-Vis,^1H NMR and^183 W NMR spectroscopies.The title complexes exhibit antitumor activity in vitro.     

Synthesis and Crystal Structures of Novel Keggin and Dawson Polyoxometalates Containing Amantadine

Heteropolyoxometalates are a large family of potent medicines due to their excellent antiviral and antitumor activity 1-4, while their application in clinic meets great difficulties for their toxicity 5. How to synthesize heteropolyoxometalate medicines possessing high activity and low toxicity has become the focus in heteropolyoxometalate medicine research. Previously reported polyoxometalates showing medical activities are all salts simple Na+, K+ or NH4+ etc. inorganic cations, in which o…