New mixed-ligand organoaluminum heteroarylalkenolates

J 2021

New mixed-ligand organoaluminum heteroarylalkenolates

PODHORSKÝ, Ján, Michal BABIAK, Jiří PINKAS, Corinna HEGEMANN, Sanjay MATHUR et. al.

Basic information

Original name

New mixed-ligand organoaluminum heteroarylalkenolates

Authors

PODHORSKÝ, Ján (703 Slovakia, belonging to the institution), Michal BABIAK (703 Slovakia, belonging to the institution), Jiří PINKAS (203 Czech Republic, belonging to the institution), Corinna HEGEMANN (276 Germany), Sanjay MATHUR (276 Germany) and Zdeněk MORAVEC (203 Czech Republic, guarantor, belonging to the institution)

Edition

Polyhedron, Elsevier, 2021, 0277-5387

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10608 Biochemistry and molecular biology

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 2.975

RIV identification code

RIV/00216224:14310/21:00120860

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.1016/j.poly.2020.114953

UT WoS

000611895400001

Keywords in English

aluminum; heteroarylalkenolate; alanes; metal organic; crystallography

Abstract

V originále

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.

Links

LM2018127, research and development project

Name: Česká infrastruktura pro integrativní strukturní biologii (Acronym: CIISB)

Investor: Ministry of Education, Youth and Sports of the CR

LQ1601, research and development project

Name: CEITEC 2020 (Acronym: CEITEC2020)

Investor: Ministry of Education, Youth and Sports of the CR

Citovat

PODHORSKÝ, Ján, Michal BABIAK, Jiří PINKAS, Corinna HEGEMANN, Sanjay MATHUR and Zdeněk MORAVEC. New mixed-ligand organoaluminum heteroarylalkenolates. 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.

@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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