CAJ | 학술논문

报道了配合物[Co(tren)(DL-phenylalaninato)](ClO-4)-2(Ⅰ)、Co(tren)(L-prolinato)]I-2H-2O (Ⅱ)、 [Co(tren) (L-valinato)] I-2*1/3H-2O (Ⅲ)、 [Co(tren)(L-isoleucinato)] I-2 (Ⅳ)、 [Co(tren) (L-leucinato)] I-2 (Ⅴ) 在溶液中的NMR研究. 通过同核和异核二维核磁共振实验归属了配合物的1H和13C NMR ,发现在配合物的空间结构中,四齿配体(tren)的3个螯合臂中有两个构象稳定,而另一个构象不稳定,这与晶体学数据吻合. 通过变温实验和溶剂效应实验,发现在配合物Ⅲ、Ⅳ、Ⅴ中存在分子内氢键,而在晶体结构中,所有配合物都存在分子间氢键. 配合物Ⅰ、Ⅱ在溶液中的行为需进一步的研究..
보도료배합물[Co(tren)(DL-phenylalaninato)](ClO-4)-2(Ⅰ)、Co(tren)(L-prolinato)]I-2H-2O (Ⅱ)、 [Co(tren) (L-valinato)] I-2*1/3H-2O (Ⅲ)、 [Co(tren)(L-isoleucinato)] I-2 (Ⅳ)、 [Co(tren) (L-leucinato)] I-2 (Ⅴ) 재용액중적NMR연구. 통과동핵화이핵이유핵자공진실험귀속료배합물적1H화13C NMR ,발현재배합물적공간결구중,사치배체(tren)적3개오합비중유량개구상은정,이령일개구상불은정,저여정체학수거문합. 통과변온실험화용제효응실험,발현재배합물Ⅲ、Ⅳ、Ⅴ중존재분자내경건,이재정체결구중,소유배합물도존재분자간경건. 배합물Ⅰ、Ⅱ재용액중적행위수진일보적연구..
NMR experiments at various temperature or with different solvents were used to characterize the nature of hydrogen bonds and conformation of several complexes in solution, namely the trans(N,t-N) isomer of [Co(tren)(DL-phenylalaninato)](ClO-4)-2(Ⅰ), Co(tren)(L-pro-linato)]I-2H-2O(Ⅱ), [Co(tren)(L-valinato)]I-2*1/3H-2O(Ⅲ), Co(tren)(L-isoleucinato)]I-2(Ⅳ), [Co(tren)(L-leucinato)]I-2(Ⅴ). Compared with their crystal structures in which intermolecular double or single hydrogen bonds were observed. Intramolecular double or single hydrogen bonds formed by the carbonyl oxygen of the amino acidato ligand and the amino hydrogen of the tren ligand were observed in Ⅲ, Ⅳ, Ⅴ. While the situations in Ⅰ and Ⅱ need more investigations. The 1H and 13C NMR assignments were achieved by 2D NMR(COSY and HMQC ).