<P>The cobalt(ii) complex incorporating π-conjugated substituent, [Co(Naph-C2-terpy)2](BF4)2 (1; Naph-C2-terpy = 4′-(2-naphthoxy(ethoxy))-2,2′:6′,2′′-terpyridine), exhibits an abrupt spin transition (ST) behavior...
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https://www.riss.kr/link?id=A107450461
2018
-
SCOPUS,SCIE
학술저널
13809-13814(6쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
<P>The cobalt(ii) complex incorporating π-conjugated substituent, [Co(Naph-C2-terpy)2](BF4)2 (1; Naph-C2-terpy = 4′-(2-naphthoxy(ethoxy))-2,2′:6′,2′′-terpyridine), exhibits an abrupt spin transition (ST) behavior...
<P>The cobalt(ii) complex incorporating π-conjugated substituent, [Co(Naph-C2-terpy)2](BF4)2 (1; Naph-C2-terpy = 4′-(2-naphthoxy(ethoxy))-2,2′:6′,2′′-terpyridine), exhibits an abrupt spin transition (ST) behavior (cooperative factor <I>C</I> = 0.91) while its solvated product, 1·2MeOH, shows gradual spin crossover (SCO) behavior (<I>C</I> = 0.49). Single crystal X-ray structural analyses demonstrated that the octahedral coordination core [CoN6] in 1 shows larger distortion in both high-spin and low-spin states than solvated 1·2MeOH or another two derivatives, [Co(R-terpy)2](BF4)2 (R = 2-naphthyl (2), 9-anthracenyl (3)). The respective distortion parameters (<I>Σ</I>) are compared with those for previously reported SCO cobalt(ii) compounds. The highly-distorted [CoN6] core in 1 (<I>Σ</I> = 126 in the HS state and 101.6 in the LS state) was stabilized by strong intermolecular interactions and observed an abrupt ST behaviour.</P>