CH3PH2BH3

















 





 









Boron


Nuclear Quadrupole Coupling Constants


in Methylphosphine  Borane


 








 








 








   







Table 1. Boron nqcc's in CH3PH2BH3 (MHz).  Calculation was made on the rs structure of Bryan and Kuczkowski [1].

   










Calc.
Expt. [2]

   







11B Xaa
0.911
0.975(11)



Xbb - 0.118 -
0.104(12)



Xcc - 0.793 -
0.872(12)



|Xab|
1.125



 







RMS

0.059 (9.1 %)




 







10B Xaa
1.811




Xbb - 0.167



  Xcc - 1.644




|Xab|
2.367



 







 








 







 
   







Table 2. Boron nqcc's in CH3PH2BD3 (MHz).  Calculation was made on the rs structure of Bryan and Kuczkowski [1].

   










Calc.
Expt. [2]

   







11B Xaa
1.006
1.085(10)



Xbb - 0.213 -
0.155(11)



Xcc - 0.793 -
0.930(11)



|Xab|
1.076



 







RMS

0.097 (13.4 %)




 







10B Xaa
2.036




Xbb - 0.391



  Xcc - 1.644




|Xab|
2.260



 







 








 








[1] P.S.Bryan and R.L.Kuczkowski, Inorg.Chem. 11,553(1972).

[2] W.Kasten, H.Dreizler, R.L.Kuczkowski, and M.Soltis LaBarge, Z.Naturforsch. 41a,835(1986).


 








 








BH3NH3 BH3CO F3PBH3 (CH3)3NBH3

 








 








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Molecules/Boron




 








 













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Last Modified 31 Oct 2008