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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >1, 9-dihydro-purine-6-thione derivatives of the d ~8-d ~(10) Metal Ions (Pd ~(II), Pt ~(II), and Cu ~I): Synthesis, spectroscopy, and structures
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1, 9-dihydro-purine-6-thione derivatives of the d ~8-d ~(10) Metal Ions (Pd ~(II), Pt ~(II), and Cu ~I): Synthesis, spectroscopy, and structures

机译:d〜8-d〜(10)金属离子(Pd〜(II),Pt〜(II)和Cu〜I)的1,9-二氢嘌呤-6-硫酮衍生物:合成,光谱和结构

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摘要

Reaction of 1, 9-dihydro-purine-6-thione (puSH _2) in presence of aqueous sodium hydroxide with PdCl _2(PPh _3) 2 suspended in ethanol formed [Pd(κ ~2-N ~7,S-puS) (PPh _3) _2] (1). Similarly, complexes [Pd(κ ~2-N ~7,S-puS)(κ ~2-P, P-L-L)] (2-4) {L-L = dppm (m = 1) (2), dppp (m = 3) (3), dppb (m = 4) (4)} were prepared using precursors the [PdCl _2(L-L)] {L-L = Ph _2P-(CH _2) _m-PPh _2}. Reaction of puSH _2 suspended in benzene with platinic acid, H 2PtCl 6, in ethanol in the presence of triethylamine followed by the addition of PPh _3 yielded the complex [Pt(κ ~2-N ~7,S-puS) (PPh _3)_2] (5). Complexes [Pt(κ ~2-N ~7,S-puS)(κ ~2-P, P-L-L)] (6-8) {L-L = dppm (6), dppp (7), dppb (8)} were prepared similarly. The 1, 9-dihydro-purine-6-thione acts as N ~7,S-chelating dianion in compounds 1-8. The reaction of copper(I) chloride [or copper(I) bromide] in acetonitrile with puSH _2 and the addition of PPh 3 in methanol yielded the same product, [Cu(κ ~2-N ~7,S-puSH)(PPh _3) _2] (9), in which the halogen atoms are removed by uninegative N, S-chelating puSH - anion. However, copper(I) iodide did not lose iodide and formed the tetrahedral complex, [CuI(κ ~1-S-puSH _2)(PPh _3) _2] (10), in which the thio ligand is neutral. These complexes were characterized with the help of elemental analysis, NMR spectroscopy (~1H, ~(31)P), and single-crystal X-ray crystallography (3, 7, 8, 9, and 10).
机译:1,9-二氢嘌呤-6-硫酮(puSH _2)在氢氧化钠水溶液中与悬浮在乙醇中的PdCl _2(PPh _3)2反应[Pd(κ〜2-N〜7,S-puS) (PPh _3)_2](1)。同样,复合物[Pd(κ〜2-N〜7,S-puS)(κ〜2-P,PLL)](2-4){LL = dppm(m = 1)(2),dppp(m = 3)(3),使用前体[PdCl _2(LL)] {LL = Ph _2P-(CH _2)_m-PPh _2}制备dppb(m = 4)(4)}。在乙醇中,在三乙胺的存在下,将悬浮在苯中的puSH _2与铂酸H 2PtCl 6反应,然后添加PPh _3得到复合物[Pt(κ〜2-N〜7,S-puS)(PPh _3 )_2](5)。络合物[Pt(κ〜2-N〜7,S-puS)(κ〜2-P,PLL)](6-8){LL = dppm(6),dppp(7),dppb(8)}是准备类似。 1,9-二氢嘌呤-6-硫酮在化合物1-8中充当N〜7,S螯合二价阴离子。氯化铜(I)[或溴化铜(I)]在乙腈中与puSH _2反应,再在甲醇中添加PPh 3,得到相同的产物[Cu(κ〜2-N〜7,S-puSH)( PPh _3)_2](9),其中卤素原子被单负N,S螯合puSH-阴离子除去。但是,碘化铜(I)不会失去碘化物,并形成四面体复合物[CuI(κ〜1-S-puSH _2)(PPh _3)_2](10),其中硫配体是中性的。这些配合物的特征在于元素分析,NMR光谱(〜1H,〜(31)P)和单晶X射线晶体学(3、7、8、9和10)。

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