#Cheetham et al, Nature 1988, 331, pg 601
#Used for methane in zeolite NaY
 
C O  3.253  0.1730
C Na 3.689  0.0263
C Si 3.000  0.0000
H O  2.697  0.1800
H Na 3.104  0.0227
H Si 3.000  0.0000
