Research output: Contribution to journal › Article › peer-review
Structure and thermal properties of (1,1,1-trifluoro-4-methyliminopentanoato-2) (cyclooctadiene-1,5)iridium(I). / Karakovskaya, K. I.; Vikulova, E. S.; Piryazev, D. A. et al.
In: Journal of Structural Chemistry, Vol. 58, No. 7, 01.12.2017, p. 1427-1431.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Structure and thermal properties of (1,1,1-trifluoro-4-methyliminopentanoato-2) (cyclooctadiene-1,5)iridium(I)
AU - Karakovskaya, K. I.
AU - Vikulova, E. S.
AU - Piryazev, D. A.
AU - Morozova, N. B.
PY - 2017/12/1
Y1 - 2017/12/1
N2 - A mixed-ligand iridium(I) complex with the imino-derivative of asymmetric β-diketone [Ir(cod)(Meitfac)] (cod = C8H12, cyclooctadiene-1,5; Mei-tfac = CF3C(O)CHC(NMe)CH3, 1,1,1-trifluoro-4-methyliminopentanoato-2) is synthesized for the first time. The compound is obtained by the interaction of [Ir(cod)Cl]2 with sodium β-iminoketonate in diethyl ether in the inert atmosphere and is characterized by elemental analysis, IR and NMR spectroscopy. According to the single crystal X-ray diffraction analysis, the compound is a monomeric molecular complex. The coordination environment of iridium is a distorted square; the Ir–O and Ir–N bond lengths are 2.031(1) Å and 2.086(2) Å respectively; the average distance Ir–C′ = 1.994(8) Å (C′ is the center of the С=С bond of the cod ligand); the NIrO chelate angle is 91.30(6)°, and the C′IrC′ angle is 87.63°. The crystal packing contains dimers formed by weak F…H–C hydrogen interactions. The thermal properties of the complex are studied by thermogravimetry. The compound passes into the gas phase in the temperature range 150-260 °C (mass loss 93.5%) and is characterized by a lower volatility as compared with its β-diketonate analog [Ir(cod)(tfac)] (tfac = CF3C(O)CHC(O)CH3, 1,1,1-trifluoropentadionato-2,4).
AB - A mixed-ligand iridium(I) complex with the imino-derivative of asymmetric β-diketone [Ir(cod)(Meitfac)] (cod = C8H12, cyclooctadiene-1,5; Mei-tfac = CF3C(O)CHC(NMe)CH3, 1,1,1-trifluoro-4-methyliminopentanoato-2) is synthesized for the first time. The compound is obtained by the interaction of [Ir(cod)Cl]2 with sodium β-iminoketonate in diethyl ether in the inert atmosphere and is characterized by elemental analysis, IR and NMR spectroscopy. According to the single crystal X-ray diffraction analysis, the compound is a monomeric molecular complex. The coordination environment of iridium is a distorted square; the Ir–O and Ir–N bond lengths are 2.031(1) Å and 2.086(2) Å respectively; the average distance Ir–C′ = 1.994(8) Å (C′ is the center of the С=С bond of the cod ligand); the NIrO chelate angle is 91.30(6)°, and the C′IrC′ angle is 87.63°. The crystal packing contains dimers formed by weak F…H–C hydrogen interactions. The thermal properties of the complex are studied by thermogravimetry. The compound passes into the gas phase in the temperature range 150-260 °C (mass loss 93.5%) and is characterized by a lower volatility as compared with its β-diketonate analog [Ir(cod)(tfac)] (tfac = CF3C(O)CHC(O)CH3, 1,1,1-trifluoropentadionato-2,4).
KW - cyclooctadiene
KW - iridium(I)
KW - MOCVD precursor
KW - single crystal X-ray diffraction analysis
KW - thermogravimetry
KW - β-iminoketonates
KW - THIN-FILMS
KW - OXIDE
KW - CHEMICAL-VAPOR-DEPOSITION
KW - IRIDIUM
KW - PLATINUM
KW - beta-iminoketonates
KW - CRYSTAL
KW - CHEMISTRY
KW - COATINGS
KW - CARBONYL
KW - PRECURSORS
UR - http://www.scopus.com/inward/record.url?scp=85039846395&partnerID=8YFLogxK
U2 - 10.1134/S0022476617070216
DO - 10.1134/S0022476617070216
M3 - Article
AN - SCOPUS:85039846395
VL - 58
SP - 1427
EP - 1431
JO - Journal of Structural Chemistry
JF - Journal of Structural Chemistry
SN - 0022-4766
IS - 7
ER -
ID: 9443870