✦ LIBER ✦
Temperature dependent 1H NMR study of the substrate complex derived from zinc(II) perchlorate, (R,R)-4,6-dibenzofurandiyl-2,2′-bis(4-phenyloxazoline), and 3-acetyl-2-oxazolidinone. Evidence for octahedral structure of the substrate complex
✍ Scribed by Shuji Kanemasa; Yoji Oderaotoshi; Junji Tanaka; Eiji Wada
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- French
- Weight
- 217 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0040-4039
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✦ Synopsis
Temperature dependent IH NMR study has been performed on the substrate complex derived from zinc(II) perchlorate, (R,R)-4,6-dibenzofurandiyl-2,2'-bis(4-phenyloxazoline), and 3-acetyl-2-oxazolidinone in deuteriodichloromethane. At room temperature, two isomers of octahedral substrate complexes are rapidly exchanging through a trigonal bipyramid intermediate. Liberation of the DBFOX/Ph ligand from the substrate complex can not be observed in a wide range of temperature, showing high stability of the DBFOX/Ph=Zn(C104)2 complex.