Journal of Organometallic Chemistry p. 1 - 10 (1988)
Update date:2022-08-28
Topics:
Cerny, Z.
Hermanek, S.
Fusek, J.
Kriz, O.
Casensky, B.
The sole 27Al NMR signal of triethylaluminum (TEA) is shifted significantly to lower field with: (1) decreasing concentration; (2) increasing temperature; and (3) increasing polarity of the solvent; that is, in each case with an increase in the amount of the monomeric form. 27Al NMR chemical shifts of Al2Et6 and AlEt3 are estimated as 153 +/- 2 and 265 +/- 10 ppm, respectively.By use of these and observed values, thermodynamic data Kd, ΔHd and ΔSd were calculated for the dissociation of Al2Et6.The dependence of the monomer-dimer equilibria on the concentration of TEA in the solvents used indicated the participation of an intermolecular process in the exchange of bridging and terminal ethyl groups not only in aromatic solvents but also, in contrast to previous reports, in aliphatic hydrocarbons.
View MoreYingkou Sanzheng Organic Chemical Co. Ltd.
Contact:+86-417-3638818
Address:25 Gengxinli Village, Daqing Road, Yingkou, Liaoning, China
Jiangsu Dacheng Pharmaceutical and Chemical Co.,Ltd
Contact:+86-0517-87036900
Address:Chuzhou Chemical park, Huai'an, Jiangsu Province
Contact:+86-10-59484199
Address:No.58-A1026 Liangguan Street
Yancheng Smiling Imp & Exp Co., Ltd.
Contact:+86-515-83173586
Address:Rm1207, BLD#03, Phoenix Plaza, Juheng Road, Yancheng, Jiangsu, P.R. China
Contact:+86 21 5017 5386
Address:No 999,Jiangyue Rd, Minhang Dist ,201114,Shanghai ,China
Doi:10.1039/C8CC06503A
(2018)Doi:10.1016/j.catcom.2010.04.008
(2010)Doi:10.1016/j.tetlet.2004.07.036
(2004)Doi:10.1007/BF00942893
()Doi:10.1134/S1070363215040271
(2015)Doi:10.1021/jp1006796
(2010)