23641
The observed Stark shifts were analyzed to determine the permanent electric dipole moment , mu el , of 2 . 03 +/- 0 . 05 D and 4 . 13 +/- 0 . 02 D , for the [ 17 . 8 ] 0 ( + ) ( v = 0 ) and X ( 1 ) Sigma ( + ) ( v = 0 ) states , respectively .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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