1
|
Abstract
Even though metallacyclopentadienes (MCPs) are among the most common metallacycles, their electron delocalization (aromaticity) has received far less attention than other metallacycles, such as metallabenzenes. We systematically studied the aromaticity of MCPs with energetic (isomerization stabilization energy), density (delocalization index) and magnetic (current density) aromaticity indices. The indices agree that metallacyclopentadienes are, in general, weakly aromatic at most. The 18e− complexes showed the expected weak aromaticity, and only the d8 molecules are somewhat anti-aromatic. However, the theoretical account of the aromaticity of the 16e− MCPs is more convoluted. We find that the aromatic criteria for a 16e−d4 ruthenacyclopentadiene disagree. The lack of agreement shows that significant electron delocalization is not always related to great stability or to strong diatropic currents.
Collapse
|
2
|
Witulski B, Alayrac C. Rhodium-Catalyzed Crossed [2+2+2] Cycloaddition with Ynamides: Key-Strategy for the Concise Total Synthesis of 3-Oxygenated Carbazole Alkaloids. HETEROCYCLES 2021. [DOI: 10.3987/com-20-s(k)24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
3
|
Torres Ò, Roglans A, Pla-Quintana A, Luis JM, Solà M. Computational insight into Wilkinson's complex catalyzed [2 + 2 + 2] cycloaddition mechanism leading to pyridine formation. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2014.06.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
4
|
Dachs A, Torrent A, Pla-Quintana A, Roglans A, Jutand A. Rates and Mechanism of Rhodium-Catalyzed [2+2+2] Cycloaddition of Bisalkynes and a Monoalkyne. Organometallics 2009. [DOI: 10.1021/om900544u] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anna Dachs
- Département de Chimie, Ecole Normale Supérieure, UMR CNRS-ENS-UPMC 8640, 24 Rue Lhomond, F-75231 Paris Cedex 5, France
- Departament de Química, Universitat de Girona, Campus de Montilivi, s/n 17071 Girona, Spain
| | - Anna Torrent
- Departament de Química, Universitat de Girona, Campus de Montilivi, s/n 17071 Girona, Spain
| | - Anna Pla-Quintana
- Departament de Química, Universitat de Girona, Campus de Montilivi, s/n 17071 Girona, Spain
| | - Anna Roglans
- Departament de Química, Universitat de Girona, Campus de Montilivi, s/n 17071 Girona, Spain
| | - Anny Jutand
- Département de Chimie, Ecole Normale Supérieure, UMR CNRS-ENS-UPMC 8640, 24 Rue Lhomond, F-75231 Paris Cedex 5, France
| |
Collapse
|
5
|
|
6
|
Xue P, Sung HS, Williams ID, Jia G. Alkyne oligomerization mediated by rhodium complexes with a phosphinosulfonamido ligand and isolation and characterization of a rhodacyclopentadiene complex. J Organomet Chem 2006. [DOI: 10.1016/j.jorganchem.2006.01.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
7
|
Mattia J, Humphrey MB, Rogers RD, Atwood JL, Rausch MD. The syntheses and molecular structures of two metalloindene complexes: 1,1-bis(.eta.5-cyclopentadienyl)-2,3-bis(pentafluorophenyl)benzotitanole and 1,1-bis(.eta.5-cyclopentadienyl)-2-trimethylsilyl-3-phenylbenzotitanole. Inorg Chem 2002. [DOI: 10.1021/ic50189a060] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
8
|
Buil ML, Esteruelas MA, López AM, Oñate E. The Os(CO)(PiPr3)2 Unit as a Support for the Transformation of Two Alkyne Molecules into New Organometallic Ligands. Organometallics 1997. [DOI: 10.1021/om970301q] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- María L. Buil
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza, CSIC, 50009 Zaragoza, Spain
| | - Miguel A. Esteruelas
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza, CSIC, 50009 Zaragoza, Spain
| | - Ana M. López
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza, CSIC, 50009 Zaragoza, Spain
| | - Enrique Oñate
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza, CSIC, 50009 Zaragoza, Spain
| |
Collapse
|
9
|
|
10
|
Abdulla K, Booth BL, Stacey C. Cyclotrimerization of acetylenes catalyzed by (η5-cyclopentadienyl)rhodium complexes. J Organomet Chem 1985. [DOI: 10.1016/0022-328x(85)80250-3] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
11
|
|
12
|
Werner H, Höhn A. Synthese und reaktivität des diphenylacetyleniridium-komplexes C5H5Ir(C2Ph2)PPr3i und bildung einer isomeren iridainden-verbindung. J Organomet Chem 1984. [DOI: 10.1016/0022-328x(84)80446-5] [Citation(s) in RCA: 37] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
13
|
|
14
|
Cetinkaya B, Binger P, Krüger C. Metallacycloalkane, V. Darstellung eines Rhodacycloheptans durch oxidative Kopplung von 3,3-Dimethylcyclopropen an Rhodium(I)-Komplexe. ACTA ACUST UNITED AC 1982. [DOI: 10.1002/cber.19821151017] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
15
|
Structural eludication of some new titanacycles by means of degradation and 13C NMR studies. J Organomet Chem 1981. [DOI: 10.1016/s0022-328x(00)82951-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
16
|
Werner H, Kolb O, Feser R, Schubert U. Komplexe mit kohlenstoffsulfiden und -seleniden als liganden. J Organomet Chem 1980. [DOI: 10.1016/s0022-328x(00)88572-1] [Citation(s) in RCA: 53] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
17
|
|
18
|
Rausch M, Higbie F, Westover G, Clearfield A, Gopal R, Troup J, Bernal I. Studies on the reactions of ferrocenylphenylacetylene and diferrocenyl-acetylene with (η5-cyclopentadienyl)dicarbonylcobalt, and an x-ray crystallographic determination of one of the products: (η5-cyclopentadienyl)(η4-1,3-diferrocenyl-2,4-diphenylcyclobutadiene)cobalt. J Organomet Chem 1978. [DOI: 10.1016/s0022-328x(00)94126-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
19
|
|