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@article{1707536,
author = {Podhorský, Ján and Babiak, Michal and Pinkas, Jiří and Hegemann, Corinna and Mathur, Sanjay and Moravec, Zdeněk},
article_number = {January},
doi = {http://dx.doi.org/10.1016/j.poly.2020.114953},
keywords = {aluminum; heteroarylalkenolate; alanes; metal organic; crystallography},
language = {eng},
issn = {0277-5387},
journal = {Polyhedron},
title = {New mixed-ligand organoaluminum heteroarylalkenolates},
url = {https://doi.org/10.1016/j.poly.2020.114953},
volume = {194},
year = {2021}
}
TY - JOUR
ID - 1707536
AU - Podhorský, Ján - Babiak, Michal - Pinkas, Jiří - Hegemann, Corinna - Mathur, Sanjay - Moravec, Zdeněk
PY - 2021
TI - New mixed-ligand organoaluminum heteroarylalkenolates
JF - Polyhedron
VL - 194
IS - January
SP - "114953"
EP - "114953"
PB - Elsevier
SN - 02775387
KW - aluminum
KW - heteroarylalkenolate
KW - alanes
KW - metal organic
KW - crystallography
UR - https://doi.org/10.1016/j.poly.2020.114953
L2 - https://doi.org/10.1016/j.poly.2020.114953
N2 - We have successfully synthesized and structurally characterized eight novel aluminum compounds with N,O-beta-heteroarylalkenolate ligands (L) containing a CF3 group. The reactions of 3,3,3-trifluoro(dimethyl-1,3-oxazol-2-yl)propen-2-ol (H-DMOTFP), 3,3,3-trifluoro(pyridin-2-yl)propen-2-ol (H-PyTFP), and 3,3,3-trifluoro(1,3-benzthiazol-2-yl)propen-2-ol (H-BTTFP) with chloroalanes R2AlCl and RAlCl2 (R = Et, iBu) in dry aprotic solvents provided complexes displaying several types of molecular structures. Effects of ligand, solvent, and crystallization conditions were investigated. The most common and stable products were chloride complexes [AlCl(L)2] with five-coordinated aluminum centers represented by [AlCl(DMOTFP)2] (1) and [AlCl(PyTFP)2] (2). A six-coordinated aluminum complex with a coordinated THF was obtained as [AlCl(THF)(PyTFP)2] (2.THF). Complexes with preserved alkyl groups [AlR(L)2] were isolated as [AlEt(BTTFP)2] (3) and [AliBu(DMOTFP)2] (4). An intermolecular rearrangement led to an ionic complex [Al(PyTFP)2(THF)2][iBuAlCl3] (5). In the reactions of H-BTTFP, the complex 3 with two ligands, as well as molecules [AlRCl(L)] with only one ligand attached were characterized as [AlEtCl(BTTFP)] (6) and [AliBuCl(BTTFP)] (7). The thermal properties of obtained complexes were investigated by TG/DSC and HT/XRD analyses.
ER -
PODHORSKÝ, Ján, Michal BABIAK, Jiří PINKAS, Corinna HEGEMANN, Sanjay MATHUR and Zdeněk MORAVEC. New mixed-ligand organoaluminum heteroarylalkenolates. \textit{Polyhedron}. Elsevier, 2021, vol.~194, January, p.~''114953'', 12 pp. ISSN~0277-5387. Available from: https://dx.doi.org/10.1016/j.poly.2020.114953.
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