Intracluster Anionic Polymerization Initiated by Electron Attachment onto Olefin Clusters (CH2:CXCN)N (X = Cl, H, D, and CH3) and (CH2:CHC6H5)N

Intracluster electron transfer from a metal atom/cluster followed by anionic oligomerization of vinyl molecules

“…Trimeric terminations were also observed for cluster anions of acrylonitrile (AN; CH 2 =CHCN) and its derivatives [3]. Through these studies, they concluded that the intracluster oligomerization is initiated by electron attachment to (AN) 3 and forms a stable anion radical that has a ring structure. On the other hand, as for methyl acrylate cluster anions, no pronounced signal (magic number) was observed at trimer, and the pentamer was found to have the most enhanced signal in the mass spectrum [4].…”

“…Also in the present M(AN) n clusters, the observed magic numbers can be related with the intracluster electron transfer from alkali metal atom followed by oligomerization of AN. In fact, in the detailed studies of (AN) − n ions by Kondow and co-workers [3,[5][6][7][8], n = 3 and 6 are found to be magic numbers. These stable species are concluded to be produced by intracluster oligomerization after electron attachment to (AN) n [3,[5][6][7][8].…”

“…In recent years, ionic oligomerization in the gas phase has also been studied to some extent in order to elucidate the elementary reaction processes [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. For this purpose, gas phase studies should have some advantages from the following features; (1) it is possible to discuss reactivity which is free from the solvent effect, and (2) assignment of the sequentially polymerized products are directly obtained by the mass spectrometric method.…”

“…Studies on gas-phase clusters were also performed as a microscopic model for the initial step of anionic oligomerization. The cluster anions of vinyl compounds produced by electron transfer from high-Rydberg rare gas atoms were extensively investigated by Tsukuda and Kondow [3][4][5]. Photodissociation, collision-induced dissociation and phoa e-mail: ohshimo@qpcrkk.chem.tohoku.ac.jp toelectron spectroscopy of the cluster anions were also performed in their studies [6][7][8].…”

“…Photodissociation, collision-induced dissociation and phoa e-mail: ohshimo@qpcrkk.chem.tohoku.ac.jp toelectron spectroscopy of the cluster anions were also performed in their studies [6][7][8]. Trimeric terminations were also observed for cluster anions of acrylonitrile (AN; CH 2 =CHCN) and its derivatives [3]. Through these studies, they concluded that the intracluster oligomerization is initiated by electron attachment to (AN) 3 and forms a stable anion radical that has a ring structure.…”