5,5′-Ethylenebis(octaethylporphyrin) 1 and its metallocomplexes with various combination of metals (Zn, Cu, and Ni) 2—10 were prepared. On the basis of 1H and 13C NMR as well as MCD spectra, it was concluded that interactions between the two intramolecular porphyrins become attractive when at least one of the two rings is converted to zinc porphyrin. The phenomenon was explained by dipole–dipole interaction arising from the large polarization in Zn complexes.
                                    5,5′-
乙烯双(八乙基
紫杉烷)1及其与各种
金属(
锌、
铜和
镍)形成的
金属复合物2—10被制备。基于1H和13C NMR谱以及MCD谱,得出结论:当至少有一个环转化为
锌紫杉烷时,两个分子内
紫杉烷之间的相互作用变得具有吸引力。这个现象是通过
锌复合物中产生的大极化引起的偶极-偶极相互作用进行解释的。