Unknown

Dataset Information

0

The Butterfly Complex [{Cp*Cr(CO)3 }2 (μ,η1:1 -P4 )] as a Versatile Ligand and Its Unexpected P1 /P3 Fragmentation.

ABSTRACT: The versatile coordination behavior of the P4 butterfly complex [{Cp*Cr(CO)3 }2 (μ,η1:1 -P4 )] (1) towards Lewis acidic pentacarbonyl compounds of Cr, Mo and W is reported. The reaction of 1 with [W(CO)4 (nbd)] (nbd=norbornadiene) yields the complex [{Cp*Cr(CO)3 }2 (μ3 ,η1:1:1:1 -P4 ){W(CO)4 }] (2) in which 1 serves as a chelating P4 butterfly ligand. In contrast, reactions of 1 with [M(CO)4 (nbd)] (M=Cr (a), Mo (b)) result in the step-wise formation of [{Cp*Cr(CO)2 }2 (μ3 ,η3:1:1 -P4 ){M(CO)5 }] (3 a,b) and [{Cp*Cr(CO)2 }2 -(μ4 ,η3:1:1:1 -P4 ){M(CO)5 }2 ] (4 a,b) which contain a folded cyclo-P4 unit. Complex 4 a undergoes an unprecedented P1 /P3 -fragmentation yielding the cyclo-P3 complex [Cp*Cr(CO)2 (η3 -P3 )] (5) and the as yet unknown phosphinidene complex [Cp*Cr(CO)2 {Cr(CO)5 }2 (μ3 -P)] (6). The identity of 6 is confirmed by spectroscopic methods and by the in situ formation of [{Cp*Cr(CO)2 (tBuNC)}P{Cr(CO)5 }2 (tBuNC)] (7). DFT calculations throw light on the bonding situation of the reported products.

SUBMITTER: Grunbauer R 

PROVIDER: S-EPMC7540658 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature

Json Xml
altmetric image

Publications

The Butterfly Complex [{Cp*Cr(CO)<sub>3</sub> }<sub>2</sub> (μ,η<sup>1:1</sup> -P<sub>4</sub> )] as a Versatile Ligand and Its Unexpected P<sub>1</sub> /P<sub>3</sub> Fragmentation.

Grünbauer Rebecca R   Balázs Gábor G   Scheer Manfred M  

Chemistry (Weinheim an der Bergstrasse, Germany) 20200817 51

The versatile coordination behavior of the P<sub>4</sub> butterfly complex [{Cp*Cr(CO)<sub>3</sub> }<sub>2</sub> (μ,η<sup>1:1</sup> -P<sub>4</sub> )] (1) towards Lewis acidic pentacarbonyl compounds of Cr, Mo and W is reported. The reaction of 1 with [W(CO)<sub>4</sub> (nbd)] (nbd=norbornadiene) yields the complex [{Cp*Cr(CO)<sub>3</sub> }<sub>2</sub> (μ<sub>3</sub> ,η<sup>1:1:1:1</sup> -P<sub>4</sub> ){W(CO)<sub>4</sub> }] (2) in which 1 serves as a chelating P<sub>4</sub> butterfly ligand. In  ...[more]

Similar Datasets

Unknown Crystal structure of the [(THF)Cs(μ-η<sup>5</sup>:η<sup>5</sup>-Cp')<sub>3</sub>Yb] <sub><i>n</i></sub> oligomer.
| S-EPMC7336790 | biostudies-literature
Unknown Halogenation of the Hexaphosphabenzene Complex [(Cp*Mo)<sub>2</sub> (μ,η<sup>6</sup> :η<sup>6</sup> -P<sub>6</sub> )]: Snapshots on the Reaction Progress.
| S-EPMC9321898 | biostudies-literature
Unknown Steric Switching From Photochemical to Thermal N<sub>2</sub> Splitting: A Computational Analysis of the Isomerization Reaction {(Cp<sup>*</sup>)(Am)Mo}<sub>2</sub>(μ-η<sup>1</sup>:η<sup>1</sup>-N<sub>2</sub>) → {(Cp<sup>*</sup>)(Am)Mo}<sub>2</sub>(μ-N)<sub>2</sub>.
| S-EPMC6535493 | biostudies-literature
Unknown Diantimony Complexes [Cp<sup>R</sup> <sub>2</sub> Mo<sub>2</sub> (CO)<sub>4</sub> (μ,η<sup>2</sup> -Sb<sub>2</sub> )] (Cp<sup>R</sup> =C<sub>5</sub> H<sub>5</sub> , C<sub>5</sub> H<sub>4</sub> <sup>t</sup> Bu) as Unexpected Ligands Stabilizing Silver(I)<sub>n</sub> (n=1-4) Monomers, Dimers and Chains.
| S-EPMC10107263 | biostudies-literature
Unknown Mixed Organometallic-Organic Hybrid Assemblies Based on the Diarsene Complex [Cp<sub>2</sub> Mo<sub>2</sub> (CO)<sub>4</sub> (μ,η<sup>2</sup> -As<sub>2</sub> )], Ag<sup>I</sup> Salts and N-Donor Organic Molecules.
| S-EPMC7986401 | biostudies-literature
Unknown An Inverted-Sandwich Diuranium μ-η<sup>5</sup>:η<sup>5</sup>-Cyclo-P<sub>5</sub> Complex Supported by U-P<sub>5</sub> δ-Bonding.
| S-EPMC4955234 | biostudies-literature
Unknown A Neutral "Aluminocene" Sandwich Complex: η<sup>1</sup> - versus η<sup>5</sup> -Coordination Modes of a Pentaarylborole with ECp* (E=Al, Ga; Cp*=C<sub>5</sub> Me<sub>5</sub> ).
| S-EPMC6856865 | biostudies-literature
Unknown Transformations of the <i>cyclo</i>-P<sub>4</sub> ligand in [Cp'''Co(η<sup>4</sup>-P<sub>4</sub>)].
| S-EPMC8159306 | biostudies-literature
Unknown Metalate-Mediated Functionalization of P<sub>4</sub> by Trapping Anionic [Cp*Fe(CO)<sub>2</sub>(η<sup>1</sup>-P<sub>4</sub>)]<sup>-</sup> with Lewis Acids.
| S-EPMC5474660 | biostudies-literature
Unknown Crystal structure of the formal 20 electron zirconocene penta-fulvene complex Cp<sub>2</sub>Zr(η<sup>5</sup>,η<sup>1</sup>-adamantyl-idene-penta-fulvene):toluene:<i>n</i>-hexane = 1:0.125:0.125.
| S-EPMC5730232 | biostudies-literature