TY - JOUR
T1 - 1,1'-(p- or m-phenylene)bis(2,4,6-triphenylpyridinyl) diradicals
T2 - Ground state in a heteroatom-containing system in relation to the topology rule
AU - Okada, Keiji
AU - Matsumoto, Kouzou
AU - Masaji, Oda
AU - Akiyama, Kimio
AU - Ikegami, Yusaku
PY - 1997/8
Y1 - 1997/8
N2 - 1,1'-(p or m-Phenylene)bis(2,4,6-triphenylpyridinyl) diradical were prepared by the reduction of the corresponding dications. The plots of the ESR signal intensity vs. 1/T show that both the p- and m-diradicals are singlet in the ground state with a singlet-triplet energy gap of 51 cal/mol for the p-isorna and 44 cal/mol for the m-isomer.
AB - 1,1'-(p or m-Phenylene)bis(2,4,6-triphenylpyridinyl) diradical were prepared by the reduction of the corresponding dications. The plots of the ESR signal intensity vs. 1/T show that both the p- and m-diradicals are singlet in the ground state with a singlet-triplet energy gap of 51 cal/mol for the p-isorna and 44 cal/mol for the m-isomer.
UR - http://www.scopus.com/inward/record.url?scp=0030837380&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0030837380&partnerID=8YFLogxK
U2 - 10.1016/S0040-4039(97)01335-X
DO - 10.1016/S0040-4039(97)01335-X
M3 - Article
AN - SCOPUS:0030837380
VL - 38
SP - 6007
EP - 6010
JO - Tetrahedron Letters
JF - Tetrahedron Letters
SN - 0040-4039
IS - 34
ER -