作者:A. Peter Cox、Andrew D. Couch、Kurt W. Hillig、Marabeth S. LaBarge、Robert L. Kuczkowski
DOI:10.1039/ft9918702689
日期:——
The microwave spectra of eight isotopic species of pivalaldehyde [(CH3)3CCHO] have been studied in the frequency region 9–40 GHz. The zero-point average skeletal structure has been derived to be: r[C(1)O]= 1.206(6)Å, r[C(1)–H]= 1.130(5)Å, r[C(1)–C(2)]= 1.516(7)Å, r[C(2)–C(3)]=r[C(2)–C(4),(5)]= 1.537(2)Å, ∠ C(1)C(2)C(3)= 110.5(4)°, ∠ C(1)C(2)C(4),(5)= 107.4(3)°, proj.∠ C(4),(5)C(2)C(1)= 120.78(4)°,
在9–40 GHz频率范围内研究了8种新戊醛[(CH 3)3 CCHO]的同位素。零点平均骨架结构已推导为:r [C(1)O] = 1.206(6)Å,r [C(1)–H] = 1.130(5)Å,r [C(1) –C(2)] = 1.516(7)Å,r [C(2)–C(3)] = r [C(2)–C(4),(5)] = 1.537(2)Å,∠ C(1)C(2)C(3)= 110.5(4)°,C(1)C(2)C(4),(5)= 107.4(3)°,项C(4) ,(5)C(2)C(1)= 120.78(4)°,CCO = 126.0(5)°和CCH(1)= 113.0(3)°。的叔丁基组被发现倾斜2°从C远O键。已对主要物种(CH 3)3 CCDO和(CD 3)3 CCHO。的基态的偶极矩(CH 3)3 CCHO被确定为μ一个= 2.618(5)d和μ b = 0.728(2)d给予μ总= 2