16887
Two ruthenium ( ii ) polypyridyl complexes [ Ru ( phen ) 2 ( 4idip ) ] ( ClO4 ) 2 ( ) and [ Ru ( bpy ) 2 ( 4idip ) ] ( ClO4 ) 2 ( ) ( phen = 1 , 10 - phenanthroline , bpy = 2 , 2 ' - bipyridine , 4idip = 4 - indoleimidazo [ 4 , 5 - f ] [ 1 , 10 ] phenanthroline ) designed as telomeric G - quadruplex ligands have been synthesized and characterized .
 Chemical: ruthenium ( ii ) polypyridyl; Chemical: [ Ru ( phen ) 2 ( 4idip ) ] ( ClO4 ) 2; Chemical: [ Ru ( bpy ) 2 ( 4idip ) ] ( ClO4 ) 2; Chemical: phen; Chemical: 1 , 10 - phenanthroline; Chemical: bpy; Chemical: 2 , 2 ' - bipyridine; Chemical: 4idip; Chemical: 4 - indoleimidazo [ 4 , 5 - f ] [ 1 , 10 ] phenanthroline
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: ruthenium ( ii ) polypyridyl; Chemical: [ Ru ( phen ) 2 ( 4idip ) ] ( ClO4 ) 2; Chemical: [ Ru ( bpy ) 2 ( 4idip ) ] ( ClO4 ) 2; Chemical: phen; Chemical: 1 , 10 - phenanthroline; Chemical: bpy; Chemical: 2 , 2 ' - bipyridine; Chemical: 4idip; Chemical: 4 - indoleimidazo [ 4 , 5 - f ] [ 1 , 10 ] phenanthroline