Molecular engineering of solid-state materials: organometallic building blocks

Fagan, Paul J.; Ward, Michael D.; Calabrese, Joseph C.

doi:10.1021/ja00187a024

Cited by 461 publications

(340 citation statements)

References 5 publications

(18 reference statements)

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“…All solvents were purified by standard methods and distilled prior to use. [18,21,36]. 1a and 1b were obtained from InnoChemTech; their preparation was previously published [5].…”

Section: Generalmentioning

confidence: 99%

Quinine‐Derived Imidazolidin‐2‐imine Ligands: Synthesis, Coordination Chemistry, and Application in Catalytic Transfer Hydrogenation

Filimon

Hrib

Randoll

et al. 2010

Zeitschrift anorg allge chemie

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“…All solvents were purified by standard methods and distilled prior to use. [18,21,36]. 1a and 1b were obtained from InnoChemTech; their preparation was previously published [5].…”

Section: Generalmentioning

confidence: 99%

Quinine‐Derived Imidazolidin‐2‐imine Ligands: Synthesis, Coordination Chemistry, and Application in Catalytic Transfer Hydrogenation

Filimon

Hrib

Randoll

et al. 2010

Zeitschrift anorg allge chemie

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“…The germacyclohexadienide ligand of 9 is coordinated to Ru in an h 5 manner through the five essentially planar carbon atoms. The angle between the C1 À Ge1 À C5 plane and the C1-C2-C3-C4-C5 plane in 9 is 39.68, which is roughly similar to those in the Fe complexes with sila-and stannacyclohexadienes: [Fe(h [25] The Cp* fragment adopts an anti-eclipsed conformation and is nearly parallel to the h .753 ), [27] the Ru-centroid (germacyclohexadiene) one appears to be shorter (1.631 ), a result that indicates that the germacyclohexadiene ligand has a stronger p-accepting capability than the Cp* ligand. In the germacyclohexadiene ligand, the lengths of the two GeÀ C bonds [1.916 (4) (1) ), [2a] suggesting non-bonding between Ge and Ru atoms.…”

Section: Synthesis Of Anmentioning

confidence: 56%

Coordination Chemistry of a Kinetically Stabilized Germabenzene: Syntheses and Properties of Stable η⁶‐Germabenzene Complexes Coordinated to Transition Metals

Tokitoh

Nakata

Shinohara

et al. 2007

Chemistry A European J

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The first stable eta6-germabenzene complexes, that is, [M(CO)3(eta6-C5H5GeTbt)] {M=Cr (2), Mo (3), and W (4); Tbt=2,4,6-tris[bis(trimethylsilyl)methyl]phenyl}, have been synthesized by ligand-exchange reactions between [M(CO)3(CH3CN)3] (M=Cr, Mo, and W) and the kinetically stabilized germabenzene 1 and characterized by 1H and 13C NMR, IR, and UV/Vis spectroscopy. In the 1H and 13C NMR spectra of 2-4, all of the signals for the germabenzene rings were shifted upfield relative to their counterparts in the free germabenzene 1. X-ray crystallographic analysis of 2 and 4 revealed that the germabenzene ligand was nearly planar and was coordinated to the M(CO)3 group (M=Cr, W) in an eta6 fashion. The formation of complexes 2-4 from germabenzene 1 should be noted as the application of germaaromatics as 6pi-electron ligands toward complexation with Group 6 metals. On the other hand, treatment of 1 with [{RuCp*Cl}4] (Cp*=C5Me5) in THF afforded a novel eta5-germacyclohexadienido complex of ruthenium-[RuCp*{eta5-C5H5GeTbt(Cl)}] (9)-instead of the expected eta6-germabenzene-ruthenium cationic complex [RuCp*{eta6-C5H5GeTbt}]Cl (10). Crystallographic structural analysis of 9 showed that the five carbon atoms of the germacyclohexadienido ligand of 9 were coordinated to the Ru center in an eta5 fashion.

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“…fragment to the aromatic ring of the ligand. The aromatic signals are indeed shifted to much higher fields compared to the free ligand [11], and the benzylic protons give an AB system instead of a singlet, without any appreciable change in chemical shift compared to the free ligand.…”

Section: Generalitiesmentioning

confidence: 95%

On the Two Closely Related Phases of [Ru(C5Me5)(η6-1,3-(Me2NCH2)2C6H4)](BF4) and the Reversible Solid–Solid Order–Disorder Phase Transition

et al. 2010

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Crystals of the complex [Ru(C 5 Me 5 )(g 6 -1,3-(Me 2 NCH 2 ) 2 C 6 H 4 )](BF 4 ) have been examined over the temperature range 150-300 K via X-ray diffraction measurements. This study shows that the Ru complex is a twophase system in this T-range and the solid-solid transition is reversible. At 150 K, phase II (P2 1 /c, Z 0 = 4) is ordered and non-merohedrally twinned, a = 16.4396 (9) ? packed along the a direction. These rows are ordered in phase II but are disordered in phase I. The phase transition is first order. Significant changes in thermal motion for the cations are considered as being the driving force for the occurrence of this phase transition.

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Molecular engineering of solid-state materials: organometallic building blocks

Cited by 461 publications

References 5 publications

Quinine‐Derived Imidazolidin‐2‐imine Ligands: Synthesis, Coordination Chemistry, and Application in Catalytic Transfer Hydrogenation

Quinine‐Derived Imidazolidin‐2‐imine Ligands: Synthesis, Coordination Chemistry, and Application in Catalytic Transfer Hydrogenation

Coordination Chemistry of a Kinetically Stabilized Germabenzene: Syntheses and Properties of Stable η⁶‐Germabenzene Complexes Coordinated to Transition Metals

On the Two Closely Related Phases of [Ru(C5Me5)(η6-1,3-(Me2NCH2)2C6H4)](BF4) and the Reversible Solid–Solid Order–Disorder Phase Transition

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Molecular engineering of solid-state materials: organometallic building blocks

Cited by 461 publications

References 5 publications

Quinine‐Derived Imidazolidin‐2‐imine Ligands: Synthesis, Coordination Chemistry, and Application in Catalytic Transfer Hydrogenation

Quinine‐Derived Imidazolidin‐2‐imine Ligands: Synthesis, Coordination Chemistry, and Application in Catalytic Transfer Hydrogenation

Coordination Chemistry of a Kinetically Stabilized Germabenzene: Syntheses and Properties of Stable η6‐Germabenzene Complexes Coordinated to Transition Metals

On the Two Closely Related Phases of [Ru(C5Me5)(η6-1,3-(Me2NCH2)2C6H4)](BF4) and the Reversible Solid–Solid Order–Disorder Phase Transition

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Coordination Chemistry of a Kinetically Stabilized Germabenzene: Syntheses and Properties of Stable η⁶‐Germabenzene Complexes Coordinated to Transition Metals