@article {4270, title = {Structure and photochemistry of four adamantylacetophenones}, journal = {Acta Crystallographica Section C-Crystal Structure Communications}, volume = {54}, year = {1998}, note = {ISI Document Delivery No.: ZL666Times Cited: 1Cited Reference Count: 10Part 4}, month = {Apr}, pages = {491-496}, type = {Article}, abstract = {The photochemistry and crystal structures of four alpha-adamantylacetophenones have been studied, namely, 1-(4-fluorophenyl)-2-(tricyclo[3.3.1.1(3,7)]dec-1-yl)ethanone [(1a), C18H21FO], 1-(4-cyanophenyl)-2-(tricyclo[3.3.1.1(3,7)]dec-1-yl)ethanone [(1b), C19H21NO], 1-(4-cyanophenyl)-2-(3-methyltricyclo[3.3.1.1(3,7)]dec-1-yl)ethanone [(1c), C20H23NO] and 1-(4-carboxyphenyl)2-(3-methyltricyclo[3.3.1.1(3,7)] dec-1-yl)ethanone [(1d), C20H24O3]. All four molecules adopt fairly similar conformations, with short gamma H...O contacts permitting hydrogen abstraction in the photochemical reactions. However, three of the compounds, (1a), (1b) and (1d), are photostable in the solid state and possible reasons for this unreactivity are considered.}, keywords = {2 POLYMORPHS, ALPHA-ADAMANTYLACETOPHENONE, CRYSTAL-STRUCTURES}, isbn = {0108-2701}, url = {://000073458300022}, author = {Fu, T. Y. and Scheffer, J. R. and Trotter, J. and Yang, J.} }