r8822 - /1.3/physical_constants.py -- February 18, 2009 - 11:40

Author: bugman
Date: Wed Feb 18 11:40:33 2009
New Revision: 8822

URL: http://svn.gna.org/viewcvs/relax?rev=8822&view=rev
Log:
Added the bond length values for RDC usage.

These are from Ottiger, M. and Bax A., J. Am. Chem. Soc. (1998), 120, 
12334-12341.


Modified:
    1.3/physical_constants.py

Modified: 1.3/physical_constants.py
URL: 
http://svn.gna.org/viewcvs/relax/1.3/physical_constants.py?rev=8822&r1=8821&r2=8822&view=diff
==============================================================================
--- 1.3/physical_constants.py (original)
+++ 1.3/physical_constants.py Wed Feb 18 11:40:33 2009
@@ -56,6 +56,22 @@
 
 NH_BOND_LENGTH = 1.02 * 1e-10
 """The length of the NH bond (default value)."""
+
+NH_BOND_LENGTH_RDC = 1.041 * 1e-10
+"""The length of the NH bond for RDCs (from Ottiger, M. and Bax A., J. Am. 
Chem. Soc. (1998), 120, 12334-12341)."""
+
+CA_HA_BOND_LENGTH_RDC = 1.118 * 1e-10
+"""The length of the C_alpha-H_alpha bond for RDCs (from Ottiger, M. and Bax 
A., J. Am. Chem. Soc. (1998), 120, 12334-12341)."""
+
+CA_C_BOND_LENGTH_RDC = 1.526 * 1e-10
+"""The length of the C_alpha-C_prime bond for RDCs (from Ottiger, M. and Bax 
A., J. Am. Chem. Soc. (1998), 120, 12334-12341)."""
+
+C_N_BOND_LENGTH_RDC = 1.329 * 1e-10
+"""The length of the C_prime-N bond for RDCs (from Ottiger, M. and Bax A., 
J. Am. Chem. Soc. (1998), 120, 12334-12341)."""
+
+C_HN_BOND_LENGTH_RDC = 2.067 * 1e-10
+"""The length of the C_prime-HN bond for RDCs (from Ottiger, M. and Bax A., 
J. Am. Chem. Soc. (1998), 120, 12334-12341)."""
+
 
 
 # The dipolar constant.