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- W2163075907 abstract "The possible stable forms and molecular structures of 1-cyclohexylpiperazine (1-chpp) and 1-(4-pyridyl)piperazine (1-4pypp) molecules have been studied experimentally and theoretically using nuclear magnetic resonance(NMR) spectroscopy. (13)C, (15)N cross-polarization magic-angle spinning NMR and liquid phase (1)H, (13)C, DEPT, COSY, HETCOR and INADEQUATE NMR spectra of 1-chpp (C(10)H(20)N(2)) and 1-4pypp (C(9)H(13)N(2)) have been reported. Solvent effects on nuclear magnetic shielding tensors have been investigated using CDCl(3), CD(3) OD, dimethylsulfoxide (DMSO)-d(6), (CD(3))(2)CO, D(2)O and CD(2)Cl(2). (1)H and (13)C NMR chemical shifts have been calculated for the most stable two conformers, equatorial-equatorial (e-e) and axial-equatorial (a-e) forms of 1-chpp and 1-4pypp using B3LYP/6-311++G(d,p)//6-31G(d) level of theory. Results from experimental and theoretical data showed that the molecular geometry and the mole fractions of stable conformers of both molecules are solvent dependent." @default.
- W2163075907 created "2016-06-24" @default.
- W2163075907 creator A5089779996 @default.
- W2163075907 date "2009-01-01" @default.
- W2163075907 modified "2023-09-28" @default.
- W2163075907 title "Complete experimental and theoretical proton and carbon nuclear magnetic resonance spectral assignments, molecular structure and conformational study of 1-cyclohexylpiperazine and 1-(4-pyridyl)piperazine" @default.
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- W2163075907 doi "https://doi.org/10.1002/mrc.2538" @default.
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