Characterization of the malate-aluminum(III) complex using 1H and 27Al NMR spectroscopy.
Structural elucidation of a malate-aluminum(III) complex has been carried out using 1H and 27Al NMR spectroscopy. The 1H chemical shift perturbation clearly indicated the interaction between malate and Al(III) ion. The measurements of 27Al NMR and 1H-13C HSQC spectra demonstrated that the major form of a complex comprised two equivalent malate ions and two unequivalent Al(III) ions. With this constraint, an equilibrium geometry of the complex was proposed by a semi-empirical molecular orbital calculation.
Tashiro
Mitsuru
M
Department of Chemistry, College of Science and Technology, Meisei University, Hino, Tokyo 191-8506, Japan.
Furihata
Kazuo
K
Fujimoto
Takashi
T
Machinami
Tomoya
T
Yoshimura
Etsuro
E
D000535:Aluminum / Q000737:chemistry*; D017607:Aluminum Compounds / Q000737:chemistry*; D006859:Hydrogen; D009682:Magnetic Resonance Spectroscopy; D008293:Malates / Q000737:chemistry*; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*; D012984:Software
D017607:Aluminum Compounds; D008293:Malates; D009942:Organometallic Compounds; C522115:malate-aluminum(III) complex; D006859:Hydrogen; D000535:Aluminum