Skeletal Molecular Structure ofclosohyphen;2,3hyphen;Dicarbahexaborane (6) from Microwave Spectral Studies

摘要

The microwave spectra of 13 isotopic species ofclosohyphen;2,3hyphen;dicarbahexaborane(6) have been studied. From these results, the cage structure of this molecule has been determined. The accuracy of the molecular structure has been evaluated. The bond lengths determined were:BondLengthBlpar;1rpar;sngbnd;Blpar;6rpar;2.434thinsp;plusmn;thinsp;0.005 Aring;Clpar;2rpar;sngbnd;Blpar;4rpar;2.297thinsp;plusmn;thinsp;0.005 Aring;Blpar;1rpar;sngbnd;Blpar;4rpar;1.721thinsp;plusmn;thinsp;0.015 Aring;Blpar;4rpar;sngbnd;Blpar;5rpar;1.752thinsp;plusmn;thinsp;0.005 Aring;Blpar;4rpar;sngbnd;Clpar;3rpar;1.605thinsp;plusmn;thinsp;0.005 Aring;Clpar;2rpar;sngbnd;Clpar;3rpar;1.540thinsp;plusmn;thinsp;0.005 Aring;Blpar;1rpar;sngbnd;Clpar;2rpar;1.627thinsp;plusmn;thinsp;0.015 Aring;The measured dipole moment was 1.50thinsp;plusmn;thinsp;0.03 D.