▎ 摘　　要

NOVELTY - Interface state diradical graphene fragment molecule i.e. 7-azapentadecacyclo35.1.9.2{11,14}.1{4,34}.1{5,29}.1{6,10}.1{15,19}.1{39,43}.0{12,27}.0{13,24}.0{23,51}.0{28,54}.0{33,50}.0{38,49}.0{47,48}tetrapentaconta-1,3,5,7,9,11(53),12(27),13(24),14(52),15,17,19,21,23(51),25,28(54),29,31,33(50),34(49),35,37,39(48),40,42,44,46-heptacosaene compound (I) is new. USE - (I) is useful as stimuli-responsive magnetic conversion materials in organic spintronic devices and quantum computation (all claimed). ADVANTAGE - (I) has photoelectromagnetic properties. DETAILED DESCRIPTION - Interface state diradical graphene fragment molecule i.e. 7-azapentadecacyclo35.1.9.2{11,14}.1{4,34}.1{5,29}.1{6,10}.1{15,19}.1{39,43}.0{12,27}.0{13,24}.0{23,51}.0{28,54}.0{33,50}.0{38,49}.0{47,48}tetrapentaconta-1,3,5,7,9,11(53),12(27),13(24),14(52),15,17,19,21,23(51),25,28(54),29,31,33(50),34(49),35,37,39(48),40,42,44,46-heptacosaene compound of formula (I) is new. R1 = -H, C1-C6 alkoxy, C1-C6 alkyl; R2 = -H, -CN, halo or phenyl; Ar = aryl ring or a substituted aryl ring. INDEPENDENT CLAIMS are also included for: preparation of (I); and timuli-responsive magnetic conversion material, comprising interface-state diradical graphene segment molecule.