21252
The vibrational dephasing dynamics of the nitrosyl stretching vibration ( nu NO ) in sodium nitroprusside ( SNP , Na2 [ Fe ( CN ) 5NO ] . 2H2O ) are investigated using two - dimensional infrared ( 2D IR ) spectroscopy .
 nitrosyl, NO, sodium nitroprusside, SNP, Na2 [ Fe ( CN ) 5NO ] . 2H2O
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 nitrosyl, NO, sodium nitroprusside, SNP, Na2 [ Fe ( CN ) 5NO ] . 2H2O