Polycarbonate resin, molded article, optical member, and lens

A polycarbonate resin having a constitutional unit represented by Formula (1);

• in Formula (1), Y1 and Y2 are each independently an oxygen atom, a sulfur atom, a nitrogen atom, or a carbon atom, and at least one of Y1 or Y2 is an oxygen atom, a sulfur atom, or a nitrogen atom;
• Z is an atomic group for forming a 5- to 7-membered ring together with Y1—C═C—Y2 and represents an atomic group including at least one selected from a carbon atom and a heteroatom;
• R5 to R8 each independently represent a substituent;
• a to d are each independently 0 or more and represent an integer of the maximum number or less by which each ring is substitutable;
• Ar11 and Ar12 each independently represent an aryl group including a benzene ring surrounded by a broken line or a heteroaryl group including a benzene ring surrounded by a broken line as one of fused rings;
• L1 and L2 each independently represent an alkylene group having 2 to 8 carbon atoms, a cycloalkylene group having 5 to 12 carbon atoms, an arylene group having 6 to 20 carbon atoms, or a heteroarylene group having 6 to 20 carbon atoms;
• X1 and X2 each independently represent an oxygen atom or a sulfur atom;
• n1 and n2 each independently represent an integer of 0 to 10;
• and
• in a case where Ar11 and Ar12 are each independently an aromatic fused ring group including a benzene ring surrounded by a broken line as one of fused rings, R5, R6, —X1-[L1-O]n1—, and —X2-[L2-O]n2— may be each independently substituted at a benzene ring surrounded by a broken line or substituted at a fused ring other than the benzene ring surrounded by a broken line.