Dipartimento di Chimica G. Ciamician dell'Università, Via Selmi 2, I-40126 Bologna, Italy.
Phys Chem Chem Phys. 2013 Feb 28;15(8):2917-22. doi: 10.1039/c2cp44131d. Epub 2013 Jan 22.
The bimolecule acrylic acid-formic acid has been investigated by pulsed jet Fourier transform microwave spectroscopy. The complex adopts two different conformational shapes, according to the cis or trans forms of the acrylic acid moiety. The measurements have been extended to four deuterated and to four (13)C (natural abundance) species, and their combinations, for each conformer. These data allowed us to determine the carbon skeleton structures and to size quantitatively the structural effect caused by the OH → OD isotopic substitutions (the Ubbelohde effect).
双分子丙烯酸-甲酸已通过脉冲射流傅里叶变换微波光谱法进行了研究。该配合物采用两种不同的构象形状，根据丙烯酸部分的顺式或反式形式。测量已经扩展到四个氘代和四个（13）C（自然丰度）物种，以及每种构象的它们的组合。这些数据使我们能够确定碳骨架结构，并定量确定 OH → OD 同位素取代（乌贝罗德效应）引起的结构效应。
