Chemistry of polynuclear metal complexes with bridging carbene or carbyne ligands. Part 106. Synthesis and reactions of the alkylidyne complexes [M(CR)(CO)2{(C6F5)AuC(pz)3}](M = WorMo, R = alkyloraryl, pz = pyrazol-1-yl); crystal structure of [WPtAU(C6F5)(µ3-CMe)(CO)2(PMe2Ph)2{(C6F5)AuC(pz)3}]
Chemistry of polynuclear metal complexes with bridging carbene or carbyne ligands. Part 106. Synthesis and reactions of the alkylidyne complexes [M(CR)(CO)2{(C6F5)AuC(pz)3}](M = WorMo, R = alkyloraryl, pz = pyrazol-1-yl); crystal structure of [WPtAU(C6F5)(µ3-CMe)(CO)2(PMe2Ph)2{(C6F5)AuC(pz)3}]
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具有桥联卡宾或碳炔配体的多核金属配合物的化学第 106 部分。亚烷基配合物 [M(CR)(CO)2{(C6F5)AuC(pz)3}](M = WorMo, R = 烷基或芳基) 的合成和反应。 , pz = 吡唑-1-基); [WPtAU(C6F5)(μ3-CMe)(CO)2(PMe2Ph)2{(C6F5)AuC(pz)3}]的晶体结构
DOI：
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发表时间：
1990
期刊：
影响因子：
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通讯作者：
F. Stone
中科院分区：
文献类型：
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作者：
P. K. Byers;N. Carr;F. Stone
[M（CR）（CO）2{HC（pz）3}][BF 4][M = W或Mo，R =烷基或芳基，HC（pz）3=三（吡唑-1-基）甲烷]的THF溶液（四氢呋喃）与NaOEt反应，然后用[Au（C6 F5）（tht）]（tht =四氢噻吩），得到中性亚烷基甲基化合物[M（CR）（CO）2{（C6 F5）AuC（pz）3}]（M = W或Mo，R = C6H4Me-4; M = W，R = Me或C6H3Me 2 - 2，6）。配合物（M = W，R = Me或C6 H4 Me-4）已被用于制备几种含杂金属-金属键的化合物，包括[WAuX（μ-CMe）（CO）2{（C6 F5）AuC（pz）3}]（X = Cl或C6F5）、[WCo2（μ3-CR）（CO）8{（C6F5）AuC（pz）3}]、[WPt（μ-CR）（CO）2（PMe2Ph）2{（C6F5）AuC（pz）3}]和[W2Pt（μ-CR）2（CO）4{（C6F5）AuC（pz）3}2]。用不同的方法合成了簇合物[WPtAu（C6 F5）（μ3-CMe）（CO）2（PMe 2 Ph）2{（C6 F5）AuC（pz）3}]，并通过X射线衍射确定了其结构。该分子的核心由WPtAu三角形[W-Pt 2.798（2），W-Au 2.841（2），和Pt-Au 2.932（2）A]组成，三角形由亚乙基基团[µ-C-W 2.06（3），µ-C-Pt 2.05（3），和µ-C-Au 2.31（3）A]不对称封端。后者离Au原子比离W或Pt原子远得多。两个羰基配体半桥接W-Pt [W-C-O 160（2）°]和W-Au [W-C-O 165（3）°]键。Pt原子带有PMe 2 Ph基团[P-Pt 2.26（1）和2.32（1）A]，Au原子与C6 F5基团配位[C-Au 2.04（3）A]。W原子与（C6 F5）AuC（pz）3部分的三个氮连接（N-W平均2.21 A）。国家医学研究所报告了新化合物的数据（1H、13 C-{1H}、31 P-{1H}和19 F-{1H}），并在适当时进行了讨论。
Treatment of the salts [M (CR)(CO)2{HC(pz)3}][BF4][M = W or Mo, R = alkyl or aryl, HC(pz)3= tris(pyrazol-1 -yl)methane] in thf (tetrahydrofuran) with NaOEt, followed by [Au(C6F5)(tht)](tht = tetrahydrothiophene), affords the neutral alkylidynemetal compounds [M(CR)(CO)2{(C6F5)AuC(pz)3}](M = W or Mo, R = C6H4Me-4; M = W, R = Me or C6H3Me2-2,6). The complexes (M = W, R = Me or C6H4Me-4) have been used to prepare several compounds containing heteronuclear metal–metal bonds, including [WAuX(µ-CMe)(CO)2{(C6F5)AuC(pz)3}](X = Cl or C6F5), [WCo2(µ3-CR)(CO)8{(C6F5)AuC(pz)3}], [WPt(µ-CR)(CO)2(PMe2Ph)2{(C6F5)AuC(pz)3}], and [W2Pt(µ-CR)2(CO)4{(C6F5)AuC(pz)3}2]. The cluster compound [WPtAu(C6F5)(µ3-CMe)(CO)2(PMe2Ph)2{(C6F5)AuC(pz)3}] has been synthesised by different routes, and its structure established by X-ray diffraction. The core of the molecule consists of a WPtAu triangle [W–Pt 2.798(2), W–Au 2.841(2), and Pt–Au 2.932(2)A] asymmetrically capped by an ethylidyne group [µ-C–W 2.06(3), µ-C–Pt 2.05(3), and µ-C–Au 2.31 (3)A]. The latter lies appreciably further from the Au atom than from the W or Pt atoms. The two carbonyl ligands semi-bridge the W–Pt [W–C–O 160(2)°] and W–Au [W–C–O 165(3)°] bonds. The Pt atom carries the PMe2Ph groups [P–Pt 2.26(1) and 2.32(1)A], and the Au atom is co-ordinated by the C6F5 group [C–Au 2.04(3)A]. The W atom is ligated by the three nitrogens of the (C6F5)AuC(pz)3 moiety (N–W average 2.21 A). The n.m.r. data (1H, 13C-{1H}, 31P-{1H}, and 19F-{1H}) for the new compounds are reported and discussed where appropriate.