Výsledky vyhledávání - "R. M. Claramunt"

Quaternary Salts of 1,2-Bisazolyl- and 1,2-Bisbenzazolylethanes

Autor: Pilar Cabildo, José Luis Lavandera, José Elguero, R. M. Claramunt, Jesús Torres

Publikováno v: Bulletin des Sociétés Chimiques Belges. 101:29-35

Eleven new heterocyclic mono-and diquaternary salts have been prepared by reaction of 1,2-bisazolyl- and 1,2-bisbenzazolyl-ethanes with methyl sulfate or methyl fluorosulfonate. Their structure has been established by means of 1H and 13C NMR spectros

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0b8aea630e9bec612249fb86063f73f8
https://doi.org/10.1002/bscb.19921010105

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Spectres de Masse FAB en Mode Positif de Cations Hétérocycliques Doublement Charges Apparentes au Dibenzo[a,e]Cyclooctane

Autor: Jean-Louis Aubagnac, José-Luis Lavandera, R. M. Claramunt, José Elguero

Publikováno v: Bulletin des Sociétés Chimiques Belges. 100:459-466

FAB mass spectra in positive mode of doubly charged heterocyclic cations allow identification of such structures. Furthermore, two characteristics of these spectra (low abundance of the doubly charged cations and the reduction phenomenon) are in agre

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ab50341c65d0fe07c9cd4f4abc443ae4
https://doi.org/10.1002/bscb.19911000605

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Rhodium complexes with hydrotris(3-p-anisylpyrazol-1-yl)borate ligand TppAn. Intramolecular CH bond activation and dehydro-chlorination processes

Autor: José V. Heras, Elena Pinilla, José A. Campo, María R. Torres, Rosario Criado, Mercedes Cano, Paloma Ovejero, M. D. Santa Maria, R. M. Claramunt

Publikováno v: Journal of Organometallic Chemistry. 605:117-126

Solution studies by 1H- and 13C-NMR, and IR spectroscopy of rhodium(I) complexes [Rh(η4-nbd)(TppAn)] (1), [Rh(η4-cod)(TppAn)] (2) and [Rh(CO)2(TppAn)] (3) (nbd=2,5-norbornadiene; cod=cycloocta-1,5-diene) have been performed. In all cases square pla

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5a03eb6bfd75b1f76be043ed821da360
https://doi.org/10.1016/s0022-328x(00)00283-7

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1D- and 2D-networks based on bis- and tris-(2-R-benzimidazol-1-yl)methanes

Autor: R. M. Claramunt, Concepción López, J. Elguero, Susan A. Bourne

Publikováno v: Crystal Engineering. 2:197-213

The supramolecular entities formed by five polybenzimidazolylmethanes,bis(2-tert-butylbenzimidazol-1-yl)methane 2, bis(2-(adamant-1-yl)benzimidazol-1-yl)methane 3, tris(2-ethylbenzimidazol-1-yl)methane 4, tris(2-isopropyl-benzimidazol-1-yl) methane 5

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::56403360d358e33b551bb7872edca5de
https://doi.org/10.1016/s1463-0184(99)00019-2

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Symmetric and dissymetric pyrazolyl-bridged rhodium dimers. Two X-ray dirhodium structures with short metal-metal interactions

Autor: Mercedes Cano, José V. Heras, C. Lopez, José A. Campo, Elena Pinilla, R. M. Claramunt, José Antonio Jiménez, Angeles Monge

Publikováno v: Journal of Organometallic Chemistry. 511:115-127

The molecular structure of complexes [{Rh(μ-pz∗)(NBD)}2] (1a–7a) and [{Rh(μ-pz∗)(CO)2}2] (1b–7b) ( pz ∗ = pyrazolate , 3,5- dimethylpyrazolate , 3(5)tert-butylpyrazolate, 3-methyl-5-tert-butylpyrazolate, 3-methyl-5-phenylpyrazolate and 3(

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::677827b3958d014f8cf2441c25dff6c1
https://doi.org/10.1016/0022-328x(95)05942-i

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An 1H and 13C NMR spectroscopic study of the structure of potassium and thallium salts of tris- and tetrakis-(pyrazol-1-yl) borates in solution. Some 13C11B and 13C205Tl residual coupling constants

Autor: C. Lopez, Swiatoslaw Trofimenko, Dionisia Sanz, J. Elguero, R. M. Claramunt

Publikováno v: Journal of Organometallic Chemistry. 503:265-276

The 1 H and 13 C NMR spectra of 18 tris- and tetrakis-pyrazolylborates in the form of potassium or thallium salts have been recorded. Four of these compounds are new. The results are discussed with regard to two main aspects: coupling constants with

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::878f416604c5d54a3405f871cae2dad7
https://doi.org/10.1016/0022-328x(95)05560-c

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