334 results on '"Richmond A"'
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2. Synthesis, Structure, and Reactivity of Triosmium Clusters Bearing a Metalated Dialkyl-substituted Pyrazine Ligand
3. New Tetraruthenium Cluster from the Thermolysis of [Ru3(CO)10(μ-dppm)]: Crystal Structure of [HRu4(CO)9(μ3-PhPCH2PPh2) (μ3,η2:η1:η1-C6H4)]
4. Synthesis, Structure, and Reactivity of Triosmium Clusters Bearing a Metalated Dialkyl-substituted Pyrazine Ligand
5. Synthesis, Structure, and Reactivity of Triosmium Clusters Bearing a Metalated Dialkyl-substituted Pyrazine Ligand
6. cis–trans Isomerism at Square-Planar MN2S2 Centers (M = Pd, Pt): Crystal Structures of N-Phenyl-N-(2-thiazoyl)thiourea Complexes trans-Pd(S2N3C10H8)2 and cis-Pt(S2N3C10H8)2 and Density Functional Calculations
7. Synthesis and Structural Characterization of the Pentanuclear Tantalum Cluster Ta5(μ5-N)(μ3-N i Pr)2(μ2-N i Pr)6(η1-N i Pr)4(η1-NH i Pr)2 from the Reaction of Ta(NMe2)5 and i PrNH2: Unprecedented Formation of a Hinged-Butterfly Cluster Containing an Interstitial Nitride, Imido Groups, and Amido Groups
8. Diphosphine- and CO-Induced Fragmentation of Chloride-bridged Dinuclear Complex and Cp*Ir(μ-Cl)3Re(CO)3 and Attempted Synthesis of Cp*Ir(μ-Cl)3Mn(CO)3: Spectroscopic Data and X-ray Diffraction Structures of the Pentamethylcyclopentadienyl Compounds [Cp*IrCl{(Z)-Ph2PCH = CHPPh2}][Cl]·2CHCl3 and Cp*Ir(CO)Cl2
9. Chloride Metathesis and Dimethylamide Transfer in the Reaction of TaCl(NMe2)4 with ZnMe2 and MeMgCl: Spectroscopic Studies and X-ray Diffraction Structures of TaCl(Me)(NMe2)3 and ZnCl2(NHMe2)2
10. Spectroscopic and X-ray Diffraction Data on Three Novel Trimetallic Clusters from Thermally Promoted Ligand Substitution in the Tetrahedrane Clusters MeCCo2MoCp(CO)8 and PhCCo2Mo(η5-C5H4CHO)(CO)8
11. α-Diimine Ligand Coordination and C–H Bond Activation in the Reaction of Os3(CO)10(MeCN)2 with 6-R-2,2′-Bipyridine (where R = Et, Ph): X-ray Diffraction Structures of the Ortho-Metalated Hydride Clusters HOs3(CO)9(N2C10H6-6-R)
12. Ligand Substitution Chemistry of the Diphosphine Ligand endo,endo-2,3-Bis(diphenylphosphinomethyl)-5-norbornene (dpmn): Syntheses and X-ray Diffraction Structures of PtCl2(dmn) and PtMe2(dpmn)
13. Syntheses, Spectroscopic Data, and X-ray Diffraction Structures of the Heterometallic RuRe Face-shared Bioctahedral (η6-cymene)Ru(μ-Cl)3Re(CO)3 and MnRu2 Edge-shared Trioctahedral [fac-ClRu(CO)3]2(μ-Cl)4Mn(H2O)2 Complexes
14. Transfer of Amide and 2-Methoxyethoxy Groups and Sodium Encapsulation in the Reaction of TaCl3[N(TMS)2]2 with Sodium Bis(2-methoxyethoxy)aluminum Hydride: X-ray Structure of [NaAl{N(TMS)2}(OCH2CH2OMe)3]2
15. Diphosphine Substitution and Carbyne Ligand Transfer in the Reaction of 2,3-Bis(diphenylphosphino)maleic Anhydride (bma) with the Methylidyne-capped Clusters HCCo2MCp(CO)8 (where M=Mo, W): Synthesis and X-ray Diffraction Structures of the Vinylidene-bridged Clusters Co2MCp(CO)6[μ–C=C(H)CH2C(PPh2)C(PPh2)C(O)OC(O)]
16. CO Substitution and Cluster-Ligand Reductive Coupling in the Reaction of 2,3-Bis(diphenylphosphino)maleic Anhydride (bma) with the Mixed-metal Clusters PhCCo2MCp(CO)8 (where M = Cr, W): Synthesis and X-ray Diffraction Structures of the Phosphido-bridged Clusters Co2MCp(CO)5[μ2,η2,η1-C(Ph)C=C(PPh2)C(O)OC(O)](μ-PPh2)
17. α-Diimine Chelation at a Triosmium Cluster: Synthesis and X-ray Structure of 1,1-Os3(CO)9(μ-CO)(1,10-phen)
18. Synthesis and Characterization of the Osmium Compound cis(CO)–ClOs(CO)2(bpcd)[C(O)Et]
19. Pincer ligand coordination at Co3 and Ru6 clusters: Syntheses, reactivity studies, and X-ray diffraction structures of [PhCCo3(CO)8]2(dppx) and [Ru6(μ6-C)(CO)16]2(dppx)
20. Photochemical reactivity of the triosmium cluster 1,1-Os3(CO)10(bpcd) in the presence of P(OEt)3 and X-ray crystal structure of HOs3(CO)7[P(OEt)3][μ-{PPh(C6H4)} C=C(PPh2)C(O)CH2C(O)]: Unexpected ortho metalation and cluster face capping by a diphosphine ligand
21. Ligand-induced polyhedral opening in the mixed-metal cluster MeCCo2NiCp(CO)6 by 4,5-Bis(diphenylphosphino)-4-cyclopenten-1,3-dione (bpcd): X-ray structure of Co2NiCp(CO)4[μ2,η2,η1-C(Me)C=C(PPh2)C(O)CH2C(O)](μ2-PPh2)
22. Diphosphine ligand substitution in H4Ru4(CO)12: X-ray diffraction structures and reactivity studies of the cluster compounds H4Ru4(CO)10(P–P) [where P–P–(Z)–Ph2PCH–CHPPh2, bpcd]
23. Knoevenagel condensation of the diphosphine ligand 4,5-bis(diphenylphosphino)-4-cyclopentene-1,3-dione with 9-anthracenecarboxaldehyde: Synthesis of the second-generation ligand 2-(anthracen-9-ylidene)-4,5-bis(diphenylphosphino)-4-cyclopentene-1,3-dione
24. Diverse ligand substitution behavior in the reaction of H4Os4(CO)12 with 4,5-bis(diphenylphosphino)-4-cyclopenten-1,3-dione (bpcd) and Me3NO: Spectroscopic characterization of the diphosphine chelating and bridging isomers H4Os4(CO)10(bpcd) and the X-ray diffraction structures of the tetraosmium clusters H4Os4(CO)11(NMe3) and 1,2-H4Os4(CO)10(NMe3)($$\eta^{1}$$-bpcd)
25. CO replacement in the tetrahedrane cluster MeC(O)CCo3(CO)9 by the diphosphine ligand 4,5-bis(diphenylphosphino)-4-cyclopenten-l,3-dione (bpcd): Diphosphine ligand isomerization and X-ray structure of the bridged cluster MeC(O)CCo3(CO)7(bpcd)
26. Syntheses and X-ray structures of the bridging and chelating isomers of Os3(CO)10(dmpe)
27. Synthesis, redox properties, and molecular structure of 4,5-diethylthio-4-cyclopenten-1,3-dione: Cyclic voltammetric evidence for a kinetically stable radical anion
28. Chlorine-atom abstraction and cluster fragmentation in the reaction of H3Re3(CO)10(MeCN)2 with the diphosphine ligand 4,5-bis(diphenylphosphino)-4-cyclopenten-1,3-dione (bpcd): X-ray diffraction structure of fac-ClRe(CO)3(bpcd)
29. Synthesis, X-ray diffraction structure, and redox chemistry of Re2(CO)8(bmf)
30. Alkyne insertion and coupling reactions of methyl propiolate with the heterometallic dimers CoRu(CO)7(μ-PPh2) and CoRu(CO)5[(Z)-Ph2PCH = CHPPh2](μ-PPh2): X-ray diffraction structures of CoRu(CO)4(μ-CO)[μ-PPh2C(O)CH(CCO2Me)C(O)CHC (CO2Me)] and CoRu(CO)3(μ-CO)[(Z)-Ph2PCH = CHPPh2][μ-PPh2C(O)C(CO2Me)CH]
31. Polyene ring attack in diag-CpRe(CO)2Br2 by hydride and cyclopentadiene displacement to furnish trans(Br)-[Re(CO)4Br2]− under CO: X-ray diffraction structure of trans(Br)-[Re(CO)4Br2][PPh4]
32. Thermolysis of the tetrahedrane cluster PhCCo3(CO)3(μ-CO)Cp2 with the unsaturated diphosphine ligands (Z)-Ph2PCH=CHPPh2 and 4,5-Bis(diphenylphosphino)-4-cyclopenten-1,3-dione (bpcd): Redox properties and molecular structure of PhCCo3(CO)(μ-CO)[(Z)-Ph2PCH=CHPPh2]Cp2
33. CO substitution in the mixed-metal clusters PhCCo2Ni(CO)6Cp and PhCCo2Mo(CO)8Cp by (Z)-Ph2PCH=CHPPh2. X-ray diffraction structures and proof of ligand bridging in PhCCo2Ni(CO)4[(Z)-Ph2PCH=CHPPh2]Cp and PhCCo2Mo(CO)6[(Z)-Ph2PCH=CHPPh2]Cp
34. Reaction of o-phenylenediamine with 2,3-dichloromaleic anhydride: synthesis of N-substituted maleimide derivatives and 2,3-dichloropyrrolo[1,2-a]benzimidazol-1-one. X-ray structures of 2,3-dichloro-N-o-C6H4(NH2)maleimide and N, N′-o-C6H4-bis(2,3-dichloromaleimide)
35. New sulfur derivatives of 2,3-dichloropyrrolo[1,2-a] benzimidazol-1-one. Demonstration of regioselective thiolate addition and X-ray diffraction structures of 2-chloro-3-methylthiopyrrolo[1,2-a]benzimidazol-1-one and 2,3-di(benzylthio)pyrrolo[1,2-a]benzimidazol-1-one
36. Synthesis, redox properties, and X-ray diffraction structure of 2,3-bis(ethylthio)-N-(p-MeOC6H4)maleimide
37. Diphosphine ring expansion and π-bond reduction in the reaction between 1,2-bis(diphenylphosphino) cyclobutenedione (bpcbd) and Ru3(CO)10(MeCN)2: X-ray diffraction structures of Ru3(CO)10[2,3- bis(diphenylphosphino)succinic anhydride] and Ru2(CO)6(bma)
38. Reaction of dichloromaleic anhydride with 1,8-diaminonaphthalene: Synthesis and X-ray diffraction structure of 8,9-dichloropyrrolo[1,2-a]perimidin-10-one
39. New polydentate sulfide ligands: Synthesis, redox properties, and molecular structure of 4,5-bis(p-tolylthio)-4-cyclopenten-1,3-dione
40. Unexpected chlorine substitution by hydrogen in the reaction of 2-chloro-3-p-toluidino-N-p-tolylmaleimide with DBU: Synthesis and molecular structure of 2-p-toluidino-N-p-tolylmaleimide
41. Ligand substitution in the halo-bridged diruthenium compound [Ru(CO)3Cl2]2 by 4,5-bis(diphenylphosphino)-4-cyclopenten-1,3-dione (bpcd). Synthesis, spectral properties, and X-ray diffraction structures of cis(CO), trans(Cl)-RuCl2(CO)2 (bpcd) and cis(CO)-RuCl[C(O)Et](CO)2(bpcd)
42. Reaction of the dicobalt alkyne compound Co2(CO)6(μ-dmad) with the diphosphine ligand 4,5-bis(diphenylphosphino)-4-cyclopenten-1,3-dione (bpcd). Spectroscopic properties, X-ray diffraction data, and thermal reactivity of the chelating isomer of Co2(CO)4(bpcd)(μ-dmad)
43. Reaction of 1,2-bis(diphenylphosphino)cyclobutenedione (bpcbd) with fac-BrRe(CO)3(THF)2: X-ray diffraction structure of the dimeric complex [BrRe(CO)3]2(bpcbd) ⋅ CH2Cl2
44. Ortho-metalation and carboxylate coordination in the reaction between the dipotassium salt of phthalic acid and Cp*Ir(PMe3)Cl2: X-ray diffraction structure of Cp*Ir(PMe3)[C6H3(CO2)(CO2H)]
45. Construction of a hexanuclear cluster composed of spatially separated Co3 and Ru3 units: X-ray diffraction structure of Co3(CO)9[μ3-CCO2CH2CC{HRu3(CO)9}]
46. Sequential reaction of p-toluidine with 2,3-dichloromaleic anhydride: Synthesis and molecular structure of 2-chloro-3-p-toluidino-N-p-tolylmaleimide
47. Bridging and chelating diphosphine ligands in Ru3(μ-H)(μ-N=CPh2)(CO)8(P—P). X-ray diffraction structures of Ru3(μ-H)(μ-N=CPh2)(CO)8(dmpe) and Ru3(μ-H)(μ-N=CPh2)(CO)8(bpcd)
48. Site-selective ligand substitution in CoRu(CO)7(μ-PPh2) using (Z)-Ph2PCH=CHPPh2 and reactivity of DMAD with CoRu(CO)5[(Z)-Ph2PCH=CHPPh2](μ-PPh2). X-ray structures of CoRu(CO)5[(Z)-Ph2PCH=CHPPh2](μ-PPh2) and CoRu(CO)3(μ-CO)[(Z)-Ph2PCH=CHPPh2] [μ, η3-Ph2PC(CO2Me)C(CO2Me)]
49. Regiospecific CO substitution in (μ-H)Ru3(μ3− η3-CHCHCMe)(CO)9 by 4,5-bis(diphenylphosphino)-4-cyclopenten-1,3-dione(bpcd). X-ray structure of (μ-H)Ru3(μ3−η3-CHCHCMe)(CO)7(bpcd)⋅MeOH
50. X-ray structure and redox chemistry of the heptacobalt cluster Co3(CO)9[μ3-CCO2CH2CCH{Co4(CO)10}]
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