SYNTHESIS AND￣（183）W NMR CHARACTERIZATI0N OF α－［P＿2W＿（15）O＿（62）Ti＿3］￣（12－） HFTEROPOLYANION

ＳＹＮＴＨＥＳＩＳ　ＡＮＤ￣（１８３）Ｗ　ＮＭＲ　ＣＨＡＲＡＣＴＥＲＩＺＡＴＩ０Ｎ　ＯＦ　α－［Ｐ＿２Ｗ＿（１５）Ｏ＿（６２）Ｔｉ＿３］￣（１２－）　ＨＦＴＥＲＯＰＯＬＹＡＮＩＯＮＳＹＮＴＨＥＳＩＳＡＮＤ￣（１８３）ＷＮＭＲＣＨＡＲＡＣＴＥＲＩＺＡＴ...     

Synthesis and Structure of ［Et＿4N］＿2［Mo＿6O＿（19）H＿4］and Valence Determination of Molybdenum

ＳｙｎｔｈｅｓｉｓａｎｄＳｔｒｕｃｔｕｒｅｏｆ［Ｅｔ＿４Ｎｊ］＿２［Ｍｏ＿６Ｏ＿（１９）Ｈ＿４］ａｎｄＶａｌｅｎｃｅＤｅｔｅｒｍｉｎａｔｉｏｎｏｆＭｏｌｙｂｄｅｎｕｍＮＩＵＳｈｕ－ｙｕｎ;ＺＨＡＮＧＨｅｎｇ－ｂｉｎ;ＹＡＮＧＧｕａｎｇ－ｄｉ;ＮＩＥＦ...     

Synthesis and Crystal Structure of［Tris（2－benzimidazylmethyl）amine］［Imidazole］Copper（Ⅱ）Perchlorate

ＳｙｎｔｈｅｓｉｓａｎｄＣｒｙｓｔａｌＳｔｒｕｃｔｕｒｅｏｆ［Ｔｒｉｓ（２－ｂｅｎｚｉｍｉｄａｚｙｌｍｅｔｈｙｌ）ａｍｉｎｅ］［Ｉｍｉｄａｚｏｌｅ］Ｃｏｐｐｅｒ（Ⅱ）ＰｅｒｃｈｌｏｒａｔｅＺｈｏｕＷｅｉ－Ｈｏｎｇ；ＬｉｕＸｉａｏ－Ｌａｎ；ＭｉａｏＦａ...     

Synthesis and Crystal Structural Characterization of （NH＿4）＿5H＿3Mn＿3V＿（12）O＿（40）·15H＿2O

ＳｙｎｔｈｅｓｉｓａｎｄＣｒｙｓｔａｌＳｔｒｕｃｔｕｒａｌＣｈａｒａｃｔｅｒｉｚａｔｉｏｎｏｆ（ＮＨ＿４）＿５Ｈ＿３Ｍｎ＿３Ｖ＿（１２）Ｏ＿（４０）·１５Ｈ＿２ＯＷＡＮＧＺｕｏ－Ｐｉｎｇ;ＬＩＵＪｉｎｇ－ｆｕａｎｄＷＡＮＧＥｎ－ｂｏ（Ｄｅｐａｔｍｅｎ...     

Application of the Reactions of Ferrocene（Ⅰ） Salts with Bis［dicarbonyl（η￣5－cyclopentadienyl）iron］ and Bis［dicarbonyl（η￣4－butadiene）cobalt］ Complexesto Organic Synthesis

ＡｐｐｌｉｃａｔｉｏｎｏｆｔｈｅＲｅａｃｔｉｏｎｓｏｆＦｅｒｒｏｃｅｎｅ（Ⅰ）ＳａｌｔｓｗｉｔｈＢｉｓ［ｄｉｃａｒｂｏｎｙｌ（η￣５－ｃｙｃｌｏｐｅｎｔａｄｉｅｎｙｌ）ｉｒｏｎ］ａｎｄＢｉｓ［ｄｉｃａｒｂｏｎｙｌ（η￣４－ｂｕｔａｄｉｅｎｅ）ｃｏｂａ...     

Synthesis and Crystal Structure of Pyridine－2－thiolato－Molybdenum Complex［Et_4N］［Mo（CO_4）（pyS）］

ＳｙｎｔｈｅｓｉｓａｎｄＣｒｙｓｔａｌＳｔｒｕｃｔｕｒｅｏｆＰｙｒｉｄｉｎｅ－２－ｔｈｉｏｌａｔｏ－ＭｏｌｙｂｄｅｎｕｍＣｏｍｐｌｅｘ［Ｅｔ_４Ｎ］［Ｍｏ（ＣＯ_４）（ｐｙＳ）］ＹｕＰｅｉ－Ｈｕａ；ＨｕａｎｇＬｉａｎｇ－Ｒｅｎ；ＺｈｕａｎｇＢｏ－Ｔａｏ...     

Synthesis and Structureof［（C_2H_5）_4N］［Mo_3（μ_3－O）（μ－Cl）_3（μ－CH_3CH_2COO）_3Cl_3］

ＳｙｎｔｈｅｓｉｓａｎｄＳｔｒｕｃｔｕｒｅｏｆ［（Ｃ_２Ｈ_５）_４Ｎ］［Ｍｏ_３（μ_３－Ｏ）（μ－Ｃｌ）_３（μ－ＣＨ_３ＣＨ_２ＣＯＯ）_３Ｃｌ_３］ＺｈｕａｎｇＨｏｎｇ－Ｈｕｉ；ＷｕＤｉｎｇ－Ｍｉｎｇ；ＨｕａｎｇＪｉａｎ－Ｑｕａｎ；ＨｕａｎｇＪｉｎ－Ｌ...     

Synthesis and Crystal Structure of 3，3－Diphenylnaphtho ［1，2－b］furan－2（3H）－one

ＳｙｎｔｈｅｓｉｓａｎｄＣｒｙｓｔａｌＳｔｒｕｃｔｕｒｅｏｆ３，３－Ｄｉｐｈｅｎｙｌｎａｐｈｔｈｏ［１，２－ｂ］ｆｕｒａｎ－２（３Ｈ）－ｏｎｅＭｅｎｇＪｉ－Ｂｅｎ；ＷｅｎＺｈｏｎｇ；ＷａｎｇＹｏｎｇ－Ｍｅｉ；ＷａｎｇＲｕ－Ｊｉ；ＷａｎｇＨｏｎｇ－Ｇｅ...     

α－和β－K_7［SiW_9O_（37）Fe_3（H_2O）_3］·xH_2O的

本文报道了从三缺位杂多阴离子α－和β－ＳｉＷ９Ｏ合成α－和β－［ＳｉＷ９Ｏ３７Ｆｅ３（Ｈ２Ｏ）３］７－的钾盐的方法．ＦＡＢ－负离子质谱表明，阴离子在溶液中主要是以单体形式存在，二聚体微量．阴离子中的配位水分子在甲苯中可被ＳＣＮ等配体取代生成具有特征颜色的配离子．标题化合物具有催化ＰｈＩＯ（亚碘酰苯）环氧化反式－二苯乙烯、苯乙烯、环乙烯生成相应环氧化物的性质．     

SYNTHESIS AND ~（183）W，~（51）V NMR CHARACTERIZATION OF a－［GaW9V8O（40）］（5－） HETEROPOLYANION

ＳＹＮＴＨＥＳＩＳＡＮＤ~（１８３）Ｗ，~（５１）ＶＮＭＲＣＨＡＲＡＣＴＥＲＩＺＡＴＩＯＮＯＦａ－［ＧａＷ９Ｖ８Ｏ（４０）］（５－）ＨＥＴＥＲＯＰＯＬＹＡＮＩＯＮ￥ＸｉａｏＰｅｎｇＺＨＡＮａｎｄＪｉｎｇＦｕＬＩＵ（ＤｅｐａｒｔｍｅｎｔｏｆＣｈｅｍｉｓｔ...     

三空位杂多阴离子XW_9O_(34)~(10-)(X=Si,Ge)取代衍生物的结构类型及其~(183)W NMR谱的特征模式

三空位阴离子SiW_9和GeW_9与金属离子反应可分别生成Keggin三取代型、夹心型及双聚型杂多阴离子.总结了三种结构类型取代衍生物的~(183)W NMR谱化学位移的特征模式.     

一缺位杂多阴离子XW_(11)O_(39)~((12-n)-)(X=P~(5+),Si~(4+),B~(3+),Ga~(3+))含硫有机膦衍生物的合成及结构表征

杂多化合物的衍生物由于具有潜在的多功能催化性能 ,长期以来一直受到人们的关注 [1～ 3 ] .将有机或有机金属基团引入杂多化合物中以修饰杂多阴离子的部分外部骨架结构 ,对研究杂多化合物的性质和应用及新型催化剂的开发具有重要意义[4,5 ] .在杂多化合物表面引入适当的有机基团还可改善其溶解性能及其它物理性质 ,从而拓宽其应用范围 .研究结果表明 ,这类化合物还具有很好的抗病毒和抗肿瘤活性 [6,7] .Klemperer等 [8] 合成的 [( η5 - C5 H5 ) Ti PW11O3 9] 4 -将多酸与金属有机化合物有机地融为一体 ,从而开辟了多酸金属有机化学的新…     

含硫有机膦多酸衍生物α–[RP(S)]2PW9O345-(R = –C6H5, –C6H11)的合成及结构表征

In the presence of Bu4NBr acting as phasetransfer reagent, organothiophosphoryl polyoxotungstate derivatives α-[RP(S)]2PW9O54^5- (R=C6Hs, C6H11) have been obtained by reaction of the trivacant β-[PW9O34]^9- anions with electrophilic C6H5P(S)Cl2 or C6H11P(S)Cl2 in acetonitrile. These new organic-inorganic hybrid anions have been characterized by elemental analysis, IR, ^31P and ^183W NMR spectroscopy. The collective application of the spectroscopy data of these new species indicates that the hybrid anion consists of an α-[PW9O34] framework on which are grafted two RP(S) groups through P-O-W bridges. The five-line ^183W spectra indicate that the hybrid anions possess Cs symmetry in acetonitrile.     

十一钨钛硅酸盐的合成,表征及电化学性质

合成了钛取代杂多硅钨酸盐Ｋ６ＳｉＷ１１ＴｉＯ４０·１６Ｈ２Ｏ（ＳｉＷ１１Ｔｉ），并用元素分析、红外光谱、紫外－可见光谱和１８３ＷＮＭＲ谱进行表征．对其溶液电化学性质进行了讨论．其还原过程包括钛的单电子还原和钨的双电子两质子加合过程．在弱酸性溶液中ＳｉＷ１１Ｔｉ对ＮＯ－２的还原有良好的催化作用     

Synthesis,Characterization and Catalytic Activity of Polyoxometalates Derived from α-P_2W_(15)O_56~(12

Ｓｙｎｔｈｅｓｉｓ,ＣｈａｒａｃｔｅｒｉｚａｔｉｏｎａｎｄＣａｔａｌｙｔｉｃＡｃｔｉｖｉｔｙｏｆＰｏｌｙｏｘｏｍｅｔａｌａｔｅｓＤｅｒｉｖｅｄｆｒｏｍα－Ｐ_２Ｗ_（１５）Ｏ_５６~（１２－）ＬｉｇａｎｄＭＥＮＧＬｕ,ａｎｄＬＩＵＪｉｎｇ－ｆｕ（Ｄｅｐａ...     

Das erste KEGGIN-Anion mit tetraedrischer. Kupfer(II)—Sauerstoff-Koordination: [α-Cu0,4(H2)0,6O4W12O36]6−

The First KEGGIN-Anion with Tetrahedral Coordination of Copper(II)-Oxygen: [α-Cu_0,4(H₂)_0.6O₄W₁₂O₃₆]^6? The solution of the Cu^II-containing heteropolyanion was prepared starting from an aqueous solution of Na₂WO₄, adjusting to pH 5–6 by adding slowly a solution of Cu(NO₃)₂ in HNO₃. The addition of the corresponding amount of N(CH₃)₄Br to the concentrated solution led to the crystallization of the greenish-yellow mixed crystals (TMA)₆[α-Cu_0.4(H₂)_0.6O₄W₁₂O₃₆] · 9 H₂O. After repeated recrystallization it has been investigated by chemical, spectroscopic (IR/Raman, UV, ¹⁸³W/¹H-NMR, ESR) and X-ray diffraction methods (monoclinic; space group P2₁; a = 13.117(4), b = 21.466(4), c = 13.223(3) Å, β = 91.60°; Z = 2; D_c = 3.041 g · cm^?3; R = 8.0%). The distances of the four “tetrahedral” oxygen atoms to the position (0, 0, 0) range from 1.67 to 1.93 Å. The alternative occupation of the central KEGGIN position with copper(II) and two protons, respectively, accounts for the different distances. The prepared solid solution represents the first example for the tetrahedral copper(II)-oxygen coordination in any heteropolyanion compound.     

Synthesis and Characterization of Organophosphazene Polyoxotungstate [（N3P3）（SiW11O39H2）3]^12-

A new organophosphazene polyoxotungstate, [(N3P3)(SiW11O39H2)3]^12-, has been prepared by reaction of hexachlorocyclotriphosphazene with undecatungstosilicate, and characterized by elemental analysis, infrared spectroscopy, and multinuclear ^31p NMR.     

Tungsten‐183 NMR study of cis‐[W(CO)4(PPh3)(4‐RC5H4N)]; effect of varying the σ donor strength of the pyridine

Tungsten‐183 NMR data are reported for the complexes cis‐[W(CO)₄(PPh₃)(4‐RC₅H₄N)] (R = H, Me, Ph, COMe, COPh, OMe, NMe₂, Cl, NO₂). The ¹⁸³W chemical shift (obtained by indirect detection using ³¹P) is found to correlate with the Hammett σ function for the group R, with ¹⁸³W shielding increasing approximately linearly with the donor strength of the pyridine over a range of 93 ppm. The X‐ray structures of cis‐[W(CO)₄(PPh₃)(4‐MeOC₅H₄N)] and cis‐[W(CO)₄(PPh₃)(4‐PhCOC₅H₄N)] are also reported. Copyright © 2013 John Wiley & Sons, Ltd.     

High‐field 95Mo and 183W static and MAS NMR study of polyoxometalates

The potential of high‐field NMR to measure solid‐state ⁹⁵Mo and ¹⁸³W NMR in polyoxometalates (POMs) is explored using some archetypical structures like Lindqvist, Keggin and Dawson as model compounds that are well characterized in solution. NMR spectra in static and under magic angle spinning (MAS) were obtained, and their analysis allowed extraction of the NMR parameters, including chemical shift anisotropy and quadrupolar coupling parameters. Despite the inherent difficulties of measurement in solid state of these low‐gamma NMR nuclei, due mainly to the low spectral resolution and poor signal‐to‐noise ratio, the observed global trends compare well with the solution‐state NMR data. This would open an avenue for application of solid‐state NMR to POMs, especially when liquid‐state NMR is not possible, e.g., for poorly soluble or unstable compounds in solution, and for giant molecules with slow tumbling motion. This is the case of Keplerate where we provide here the first NMR characterization of this class of POMs in the solid state. Copyright © 2017 John Wiley & Sons, Ltd.