Structural and spectroscopic trends in mononuclear arylchalcogenolato-palladium(II) and -platinum(II) complexes: Crystal structures of [M(TeAr)_2(dppe)] {M = palladium, platinum; Ar = phenyl, 2-thienyl; dppe = 1,2-bis(diphenylphosphino)ethane}

Maarit Risto; Esther M. Jahr; Milja S. Hannu-Kuure; Raija Oilunkaniemi; Risto S. Laitinen

首页> 外文期刊>Journal of Organometallic Chemistry >Structural and spectroscopic trends in mononuclear arylchalcogenolato-palladium(II) and -platinum(II) complexes: Crystal structures of [M(TeAr)_2(dppe)] {M = palladium, platinum; Ar = phenyl, 2-thienyl; dppe = 1,2-bis(diphenylphosphino)ethane}

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Structural and spectroscopic trends in mononuclear arylchalcogenolato-palladium(II) and -platinum(II) complexes: Crystal structures of [M(TeAr)_2(dppe)] {M = palladium, platinum; Ar = phenyl, 2-thienyl; dppe = 1,2-bis(diphenylphosphino)ethane}

机译：单核芳基硫族元素合钯（II）和-铂（II）配合物的结构和光谱趋势：[M（TeAr）_2（dppe）]的晶体结构{M =钯，铂; Ar =苯基，2-噻吩基; dppe = 1,2-双（二苯基膦基）乙烷}

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A series of mononuclear [M(EAr)_2(dppe)] [M = Pd, Pt; E = Se, Te; Ar = phenyl, 2-thienyl; dppe = 1,2-bis(diphenylphosphino)ethane] complexes has been prepared in good yields by the reactions of [MC_l2(dppe)] and corresponding ArE? with a special emphasis on the aryltellurolato palladium and -platinum complexes for which the existing structural information is virtually non-existent. The complexes have crystallized in five isomorphic groups: (1) [Pd(SePh)_2(dppe)] and [Pt(SePh)_2(dppe)], (2) [Pd(TePh)_2(dppe)] and [Pt(TePh)_2(dppe)], (3) [Pd(SeTh)_2(dppe)], (4) [Pt(SeTh)_2(dppe)] and [Pd(TeTh)_2(dppe)], and (5) [Pt(TePh)_2(dppe)]. In addition, solvated [Pd(TePh)_2(dppe)] · CH_3OH and [Pd(TeTh)_2(dppe)] · 1/2CH_2Cl_2 could be isolated and structurally characterized. The metal atom in each complex exhibits an approximate square-planar coordination. The Pd–Se, Pt–Se, Pd–Te, and Pt–Te bonds span a range of 2.4350(7)–2.4828(7) A, 2.442(1)–2.511(1) A, 2.5871(7)–2.6704(8) A, and 2.6053(6)–2.6594(9) A, respectively, and the respective Pd–P and Pt–P bond distances are 2.265(2)–2.295(2) A and 2.247(2)–2.270(2) ?. The orientation of the arylchalcogenolato ligands with respect to the M(E2)(P2) plane has been found to depend on the E–M–E bond angle. The NMR spectroscopic information indicates the formation of only cis-[M(EAr)_2(dppe)] complexes in solution. The trends in the ~31P, ~77Se, ~125Te, and 195Pt chemical shifts expectedly depend on the nature of metal, chalcogen, and aryl group. Each trend can be considered independently of other factors. The ~77Se or ~125Te resonances appear as second-order multiplets in case of palladium and platinum complexes, respectively. Spectral simulation has yielded all relevant coupling constants

机译：一系列单核[M（EAr）_2（dppe）] [M = Pd，Pt; E = Se，Te; Ar =苯基，2-噻吩基; dppe ＝ 1，2-双（二苯基膦基乙烷）乙烷配合物是通过[MC-12（dppe）]和相应的ArE 2反应制备的。特别要强调的是芳基碲脲钯和铂络合物，而这些化合物实际上不存在。配合物已结晶为五个同构基团：（1）[Pd（SePh）_2（dppe）]和[Pt（SePh）_2（dppe）]，（2）[Pd（TePh）_2（dppe）]和[Pt （TePh）_2（dppe）]，（3）[Pd（SeTh）_2（dppe）]，（4）[Pt（SeTh）_2（dppe）]和[Pd（TeTh）_2（dppe）]，以及（ 5）[Pt（TePh）_2（dppe）]。此外，可以分离溶剂化的[Pd（TePh）_2（dppe）]·CH_3OH和[Pd（TeTh）_2（dppe）]·1 / 2CH_2Cl_2并进行结构表征。每个络合物中的金属原子均表现出近似的方形-平面配位。 Pd-Se，Pt-Se，Pd-Te和Pt-Te键的范围为2.4350（7）–2.4828（7）A，2.442（1）–2.511（1）A，2.5871（7）–2.6704 （8）A和2.6053（6）–2.6594（9）A，分别的Pd–P和Pt–P键距分别为2.265（2）–2.295（2）A和2.247（2）–2.270（ 2）？。已发现芳基硫属元素生成素相对于M（E2）（P2）平面的取向取决于E–M–E键角。 NMR光谱信息表明溶液中仅形成顺式[[M（EAr）_2（dppe）]]配合物。〜31P，〜77Se，〜125Te和195Pt化学位移的趋势预期取决于金属，硫属元素和芳基的性质。每个趋势都可以独立于其他因素考虑。在钯和铂配合物的情况下，〜77Se或〜125Te共振分别显示为二阶多重峰。光谱仿真得出所有相关的耦合常数

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《Journal of Organometallic Chemistry》 |2007年第11期|共12页
作者
Maarit Risto; Esther M. Jahr; Milja S. Hannu-Kuure; Raija Oilunkaniemi; Risto S. Laitinen;
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正文语种 eng
中图分类有机化学;
关键词
Organotellurium ligands; Organoselenium ligands; Palladium complexes; Platinum complexes; X-ray crystallography; NMR spectroscopy;

机译：有机碲配体;有机硒配体;钯配合物;铂配合物;X射线晶体学;NMR光谱;

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1. Structural and spectroscopic trends in mononuclear arylchalcogenolato-palladium(II) and -platinum(II) complexes: Crystal structures of [M(TeAr)_2(dppe)] {M = palladium, platinum; Ar = phenyl, 2-thienyl; dppe = 1,2-bis(diphenylphosphino)ethane} [J] . Maarit Risto, Esther M. Jahr, Milja S. Hannu-Kuure, Journal of Organometallic Chemistry . 2007,第11期

机译：单核芳基硫族元素合钯（II）和-铂（II）配合物的结构和光谱趋势：[M（TeAr）_2（dppe）]的晶体结构{M =钯，铂; Ar =苯基，2-噻吩基; dppe = 1,2-双（二苯基膦基）乙烷}
2. Metal-heterocyclic thione interactions. 12. Heterocyclic 2-thiolates of platinum(II) and palladium(II): the crystal structures of first examples of cis-[M(eta(1)-S-pyridine-2-thiolato)(2)( L-L)] {M = Pt, Pd, L-L=1,2-bis(diphenylphosphino) ethane; M = [J] . Lobana TS., Hundal G., Castineiras A., Polyhedron: The International Journal for Inorganic and Organometallic Chemistry . 2000,第8期

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Structural and spectroscopic trends in mononuclear arylchalcogenolato-palladium(II) and -platinum(II) complexes: Crystal structures of [M(TeAr)_2(dppe)] {M = palladium, platinum; Ar = phenyl, 2-thienyl; dppe = 1,2-bis(diphenylphosphino)ethane}

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