Synthese und kristallstruktur von heterometallzweikernkomplexen mit vinyliden-brückenliganden

Werner, Helmut; Alonso, Francesco Javier Garcia; Otto, H.; Peters, Karl; Schnering, H. G. Von

doi:10.1016/0022-328x(85)88044-x

Cited by 27 publications

(9 citation statements)

References 17 publications

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“…Such line broadness of the CO resonances can be explained by a site exchange of two carbonyl groups of the [Cp(CO) 2 Re] fragment and observed earlier [33,[37][38][39][40]. The presence of one CO coordinated to the platinum atom in the 13 The position of PPh 3 and CO ligands in 1 can also be unambiguously deduced from the 31 P NMR data. In the previous works [25,33], signals in the 31 P NMR spectra with a larger coupling constant are assigned to the phosphorus ligand trans to metal-containing fragment and the signals with a smaller J PtP coupling are assigned to the ligand trans to the µ-C=CHPh.…”

Section: Nmr and Ir Studysupporting

confidence: 57%

“…The IR and the 1 H, 13 C, 31 P and 195 Pt NMR data for the complex 1 were obtained. The NMR signals were assigned on the basis of 1 H, 13 C{ 1 H} and 1 H, 31 P{ 1 H} correlations measured through HSQC and HMQC experiments, respectively.…”

Section: Nmr and Ir Studymentioning

confidence: 99%

“…In the 1 H NMR spectrum a singlet due to the vinylidene proton =C 2 H is found at δ 7.41. In the 13 C NMR spectrum of 1 a signal for the bridged C 1 atom of the vinylidene is observed at δ 229.7 with a J PtC coupling of 855 Hz, and this signal is upfield shifted by approximately 31 ppm relative to that of the corresponding MnPt complex (3). A doublet at δ 143.2 (with 2 J PtC and 3 J PC couplings of 104 Hz and 5.5 Hz, respectively) arises from the C 2 atom of vinylidene ligand.…”

Section: Nmr and Ir Studymentioning

confidence: 99%

“…The 13 C NMR spectrum of 1 contains a broad resonance at δ 202.9 that was assigned to the two Re-bound CO ligands. Such line broadness of the CO resonances can be explained by a site exchange of two carbonyl groups of the [Cp(CO) 2 Re] fragment and observed earlier [33,[37][38][39][40].…”

Section: Nmr and Ir Studymentioning

confidence: 99%

“…They can be easily prepared by reaction of mononuclear vinylidene complexes of the type L n M=C=CR 2 with unsaturated metal-containing fragments [8,9]. A wide variety of heterometallic vinylidene complexes [9][10][11][12][13][14] and clusters [8,9] containing MM', MM' 2 and MM'M'' cores were obtained by this method.…”

Section: Introductionmentioning

confidence: 99%

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Chemistry of vinylidene complexes. XXIV. A new μ-vinylidene complex containing RePt core, and platinum-bound carbonyl ligand. Spectroscopic, structural and electrochemical study

Verpekin

Vasiliev

Kondrasenko

et al. 2018

Journal of Molecular Structure

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The novel heterobinuclear μ-vinylidene complex [Cp(CO) 2 Re(μ-C=CHPh)Pt(PPh 3)(CO)] (1) was isolated from the reaction mixture of [Cp(CO) 2 Re(μ-C=CHPh)Fe(CO) 4 ] and Pt(PPh 3) 4 for the first time. Alternative high-yield synthetic approaches to 1 were developed including the reactions of [Cp(CO) 2 Re(μ-C=CHPh)Pt(PPh 3) 2 ] (2) with Co 2 (CO) 8 and Rh(acac)(CO) 2. The complex was characterized by IR and 1 H, 13 C and 31 P NMR spectroscopy, a molecular structure of 1 was determined by X-ray diffraction analysis. The electrochemical behavior of the new complex was studied by cyclic voltammetry at platinum or glassed carbon electrodes and by dc polarography at a dropping mercury electrode.

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Section: Nmr and Ir Studysupporting

confidence: 57%

Section: Nmr and Ir Studymentioning

confidence: 99%

Section: Nmr and Ir Studymentioning

confidence: 99%

Section: Nmr and Ir Studymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Chemistry of vinylidene complexes. XXIV. A new μ-vinylidene complex containing RePt core, and platinum-bound carbonyl ligand. Spectroscopic, structural and electrochemical study

Verpekin

Vasiliev

Kondrasenko

et al. 2018

Journal of Molecular Structure

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Structural Organomanganese Chemistry

Meier¹,

Hanusa²

2011

Patai's Chemistry of Functional Groups

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In the more than 50 years since the first manganese compound with MnC bonds was crystallographically characterized (Mn 2 (CO) 10 , in 1957), the number of structurally authenticated organomanganese compounds has grown to several thousands. The richness of structural features in organomanganese compounds now rivals that of any other first row transition metal. The range of structural features and bond types is large, and encompasses MnC, MnC, and MnC bonds, as well as complexes with MnMn, MnMn, and MnMn linkages. Crystallographically characterized examples are known with oxidation states from Mn 0 to Mn V , and the accessibility of two spin states of comparable energy in complexes of Mn II adds an additional variable to the fundamental structural types. The present review of structural organomanganese chemistry focuses largely on crystallographically characterized complexes, whose geometries are the most reliably established. Representative examples of major compound classes are considered, and statistical analysis of typical bond length ranges is provided for various Mn/C and Mn/Mn interactions. Bond lengths in organomanganese compounds are highly context‐sensitive, and even when only a specific bond order is under consideration, the spread of distances makes comparisons difficult unless closely related molecules are examined.

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Vinylidene Transition‐metal complexes, VI. The rhodium compounds C₅H₅Rh(CCHR)PiPr₃ as building blocks for the synthesis of heterometallic Di‐ and trinuclear vinylidene‐bridged complexes

et al. 1988

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The vinylidene rhodium complex CsH@ ( =C=CH jPiPr3 (1) reacts with C&6Cr(COh upon UV irradiation and with C5HsMn- During our investigations on electron-rich half-sandwich type compounds C5H5MLL' (M = Co, Rh, Ir; L and L' = two-electron donor ligands) we previously observed that the reaction of trans-[RhCl(RC =CH)L2] (L = PiPr3) with NaC5H5 not only leads to the formation of the expected alkyne complexes C5H5Rh(RC = CH)L but also to that of the unexpected vinylidene isomers C5H5Rh( = C = CHR)LZv3). These compounds reveal a remarkable reactivity towards electrophilic substrates as is illustrated with CH2N2, the chalcogens4), and CuC15) as examples in Scheme 1.As a continuation of these studies, we were interested to learn whether not only CuCl but also other metal-contain- -19). Die Kristall-und Molekiilstrukturen von 6, ll und 14 wurden bestimmt. Die Zweikernkomplexe 6 und 11 enthglten unsymmetrisch gebundene Briickenliganden (CO und C=CHd, was wahrscheinlich auf die unterschiadliche Elektronenkonf@ration der beiden Metallatome zuriickmfiihren ist. Das M s t des dreikemigen Clusters 14 besteht aus einem offmen Rh -Fe-Fe-Dreieck, das von der C = CHrEinheit iiberbriickt ist.ing species that have a free coordination site are able to react with the Rh = C bond of C5H5Rh( = C = CHR)L to form heterometallic dinuclear complexes. Prior to our work 6, Antonova, Kolobova, and coworkers ' ) as well as Berke *) reported that mononuclear manganese, rhenium, and iron compounds of general composition M( = C = CHR)L, react, e.g., with C5H5Mn(C0)z(THF), [dppm = CH2(PPh2)2], in which the unsubstituted :C = CH2

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Synthese und kristallstruktur von heterometallzweikernkomplexen mit vinyliden-brückenliganden

Cited by 27 publications

References 17 publications

Chemistry of vinylidene complexes. XXIV. A new μ-vinylidene complex containing RePt core, and platinum-bound carbonyl ligand. Spectroscopic, structural and electrochemical study

Chemistry of vinylidene complexes. XXIV. A new μ-vinylidene complex containing RePt core, and platinum-bound carbonyl ligand. Spectroscopic, structural and electrochemical study

Structural Organomanganese Chemistry

Vinylidene Transition‐metal complexes, VI. The rhodium compounds C₅H₅Rh(CCHR)PiPr₃ as building blocks for the synthesis of heterometallic Di‐ and trinuclear vinylidene‐bridged complexes

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Synthese und kristallstruktur von heterometallzweikernkomplexen mit vinyliden-brückenliganden

Cited by 27 publications

References 17 publications

Chemistry of vinylidene complexes. XXIV. A new μ-vinylidene complex containing RePt core, and platinum-bound carbonyl ligand. Spectroscopic, structural and electrochemical study

Chemistry of vinylidene complexes. XXIV. A new μ-vinylidene complex containing RePt core, and platinum-bound carbonyl ligand. Spectroscopic, structural and electrochemical study

Structural Organomanganese Chemistry

Vinylidene Transition‐metal complexes, VI. The rhodium compounds C5H5Rh(CCHR)PiPr3 as building blocks for the synthesis of heterometallic Di‐ and trinuclear vinylidene‐bridged complexes

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Vinylidene Transition‐metal complexes, VI. The rhodium compounds C₅H₅Rh(CCHR)PiPr₃ as building blocks for the synthesis of heterometallic Di‐ and trinuclear vinylidene‐bridged complexes