18247
Comparisons are made to the known electronic states of CuF , CuCl , CuBr , and CuI , and it is argued that like these molecules , the CuCCH molecule is essentially ionic in both the ground and excited states , with the ground state correlating diabatically to Cu ( + ) ( 3d ( 10 ) , ( 1 ) S ) + CCH ( - ) ( X ( 1 ) Sigma ( + ) ) and the excited states correlating diabatically to Cu ( + ) ( 3d ( 9 ) 4s ( 1 ) , ( 1 , 3 ) D ) + CCH ( - ) ( X ( 1 ) Sigma ( + ) ) .
 Chemical: CuF; Chemical: CuCl; Chemical: CuBr; Chemical: CuI; Chemical: CuCCH; Chemical: Cu ( + ); Chemical: CCH ( - ); Chemical: Cu ( + ); Chemical: CCH ( - )
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: CuF; Chemical: CuCl; Chemical: CuBr; Chemical: CuI; Chemical: CuCCH; Chemical: Cu ( + ); Chemical: CCH ( - ); Chemical: Cu ( + ); Chemical: CCH ( - )