27058
Related homogeneous ligand L ( t ) ( Bu ) and its Ni ( II ) complexes , [ Ni ( L ( t ) ( Bu ) ) ( OAc ) 2 ( H2 O ) ] ( L ( t ) ( Bu ) / Ni ) and [ Ni ( L ( t ) ( Bu ) ) 2 ] BF4 ( 2 L ( t ) ( Bu ) / Ni ) , have been synthesized .
 Chemical: L ( t ) ( Bu ); Chemical: Ni ( II ); Chemical: [ Ni ( L ( t ) ( Bu ) ) ( OAc ) 2 ( H2 O ) ] ( L ( t ) ( Bu ) / Ni ); Chemical: [ Ni ( L ( t ) ( Bu ) ) 2 ] BF4 ( 2 L ( t ) ( Bu ) / Ni )
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: L ( t ) ( Bu ); Chemical: Ni ( II ); Chemical: [ Ni ( L ( t ) ( Bu ) ) ( OAc ) 2 ( H2 O ) ] ( L ( t ) ( Bu ) / Ni ); Chemical: [ Ni ( L ( t ) ( Bu ) ) 2 ] BF4 ( 2 L ( t ) ( Bu ) / Ni )