Index: modlib/top_cacb.lib
===================================================================
--- modlib/top_cacb.lib	(revision 6539)
+++ modlib/top_cacb.lib	(working copy)
@@ -978,7 +978,7 @@
 BOND P OP1 P OP2 P O5' O5' C5' C5' C4' C4' O4'
 BOND C4' C3' O4' C1' C1' N9 C1' C2' N9 C4 N9 C8
 BOND C4 N3 C4 C5 N3 C2 C2 N1 N1 C6 C6 N6
-BOND C6 C5 C5 N7 N7 C8
+BOND C6 C5 C5 N7 N7 C8 C2' C3' C3' O3' O3' +P
 IMPR N6 N1 C5 C6
 IC -O3'  P     O5'   C5'       1.6001  101.4500  -39.2500  119.0000    1.4401
 IC -O3'  O5'   *P    OP1       1.6001  101.4500 -115.8200  109.7400    1.4802
Index: modlib/top_mnch.lib
===================================================================
--- modlib/top_mnch.lib	(revision 6539)
+++ modlib/top_mnch.lib	(working copy)
@@ -1139,7 +1139,7 @@
 BOND P OP1 P OP2 P O5' O5' C5' C5' C4' C4' O4'
 BOND C4' C3' O4' C1' C1' N9 C1' C2' N9 C4 N9 C8
 BOND C4 N3 C4 C5 N3 C2 C2 N1 N1 C6 C6 N6
-BOND C6 C5 C5 N7 N7 C8
+BOND C6 C5 C5 N7 N7 C8 C2' C3' C3' O3' O3' +P
 IMPR N6 N1 C5 C6
 IC -O3'  P     O5'   C5'       1.6001  101.4500  -39.2500  119.0000    1.4401
 IC -O3'  O5'   *P    OP1       1.6001  101.4500 -115.8200  109.7400    1.4802
Index: modlib/top_polh.lib
===================================================================
--- modlib/top_polh.lib	(revision 6539)
+++ modlib/top_polh.lib	(working copy)
@@ -1665,7 +1665,8 @@
 BOND P OP1 P OP2 P O5' O5' C5' C5' C4' C4' O4'
 BOND C4' C3' O4' C1' C1' N9 C1' C2' N9 C4 N9 C8
 BOND C4 N3 C4 C5 N3 C2 C2 N1 N1 C6 C6 N6
-BOND N6 H61 N6 H62 C6 C5 C5 N7 N7 C8
+BOND N6 H61 N6 H62 C6 C5 C5 N7 N7 C8 C2' C3'
+BOND C3' O3' O3' +P
 IMPR H62 C6 H61 N6 N6 N1 C5 C6
 IC -O3'  P     O5'   C5'       1.6001  101.4500  -39.2500  119.0000    1.4401
 IC -O3'  O5'   *P    OP1       1.6001  101.4500 -115.8200  109.7400    1.4802
Index: modlib/top_allh.lib
===================================================================
--- modlib/top_allh.lib	(revision 6539)
+++ modlib/top_allh.lib	(working copy)
@@ -2188,9 +2188,9 @@
 BOND P OP1 P OP2 P O5' O5' C5' C5' C4' C4' O4'
 BOND C4' C3' O4' C1' C1' N9 C1' C2' N9 C4 N9 C8
 BOND C4 N3 C4 C5 N3 C2 C2 N1 N1 C6 C6 N6
-BOND N6 H61 N6 H62 C6 C5 C5 N7 N7 C8 C1' H1'
-BOND C2' H2' C3' H3' C4' H4' C5' H5' C5' H5'' C8 H8
-BOND C2 H2 C2' H2''
+BOND N6 H61 N6 H62 C6 C5 C5 N7 N7 C8 C2' C3'
+BOND C3' O3' O3' +P C1' H1' C2' H2' C3' H3' C4' H4'
+BOND C5' H5' C5' H5'' C8 H8 C2 H2 C2' H2''
 ANGL C1' C2' H2'' C3' C2' H2'' H2'' C2' H2'
 DIHE H2'' C2' C1' O4' H2''' C2' C1' N1 H2'' C2' C1' H1'
 DIHE H2'' C2' C3' C4' H2'' C2' C3' O3' H2'' C2' C3' H3'
Index: modlib/top_mnss.lib
===================================================================
--- modlib/top_mnss.lib	(revision 6539)
+++ modlib/top_mnss.lib	(working copy)
@@ -1145,7 +1145,7 @@
 BOND P OP1 P OP2 P O5' O5' C5' C5' C4' C4' O4'
 BOND C4' C3' O4' C1' C1' N9 C1' C2' N9 C4 N9 C8
 BOND C4 N3 C4 C5 N3 C2 C2 N1 N1 C6 C6 N6
-BOND C6 C5 C5 N7 N7 C8
+BOND C6 C5 C5 N7 N7 C8 C2' C3' C3' O3' O3' +P
 IMPR N6 N1 C5 C6
 IC -O3'  P     O5'   C5'       1.6001  101.4500  -39.2500  119.0000    1.4401
 IC -O3'  O5'   *P    OP1       1.6001  101.4500 -115.8200  109.7400    1.4802
Index: modlib/top_heav.lib
===================================================================
--- modlib/top_heav.lib	(revision 6539)
+++ modlib/top_heav.lib	(working copy)
@@ -1397,7 +1397,7 @@
 BOND P OP1 P OP2 P O5' O5' C5' C5' C4' C4' O4'
 BOND C4' C3' O4' C1' C1' N9 C1' C2' N9 C4 N9 C8
 BOND C4 N3 C4 C5 N3 C2 C2 N1 N1 C6 C6 N6
-BOND C6 C5 C5 N7 N7 C8
+BOND C6 C5 C5 N7 N7 C8 C2' C3' C3' O3' O3' +P
 IMPR N6 N1 C5 C6
 IC -O3'  P     O5'   C5'       1.6001  101.4500  -39.2500  119.0000    1.4401
 IC -O3'  O5'   *P    OP1       1.6001  101.4500 -115.8200  109.7400    1.4802
Index: modlib/top_mccb.lib
===================================================================
--- modlib/top_mccb.lib	(revision 6539)
+++ modlib/top_mccb.lib	(working copy)
@@ -1185,7 +1185,7 @@
 BOND P OP1 P OP2 P O5' O5' C5' C5' C4' C4' O4'
 BOND C4' C3' O4' C1' C1' N9 C1' C2' N9 C4 N9 C8
 BOND C4 N3 C4 C5 N3 C2 C2 N1 N1 C6 C6 N6
-BOND C6 C5 C5 N7 N7 C8
+BOND C6 C5 C5 N7 N7 C8 C2' C3' C3' O3' O3' +P
 IMPR N6 N1 C5 C6
 IC -O3'  P     O5'   C5'       1.6001  101.4500  -39.2500  119.0000    1.4401
 IC -O3'  O5'   *P    OP1       1.6001  101.4500 -115.8200  109.7400    1.4802
Index: modlib/top_ca3h.lib
===================================================================
--- modlib/top_ca3h.lib	(revision 6539)
+++ modlib/top_ca3h.lib	(working copy)
@@ -859,7 +859,7 @@
 BOND P OP1 P OP2 P O5' O5' C5' C5' C4' C4' O4'
 BOND C4' C3' O4' C1' C1' N9 C1' C2' N9 C4 N9 C8
 BOND C4 N3 C4 C5 N3 C2 C2 N1 N1 C6 C6 N6
-BOND C6 C5 C5 N7 N7 C8
+BOND C6 C5 C5 N7 N7 C8 C2' C3' C3' O3' O3' +P
 IMPR N6 N1 C5 C6
 IC -O3'  P     O5'   C5'       1.6001  101.4500  -39.2500  119.0000    1.4401
 IC -O3'  O5'   *P    OP1       1.6001  101.4500 -115.8200  109.7400    1.4802
Index: modlib/top_ca.lib
===================================================================
--- modlib/top_ca.lib	(revision 6539)
+++ modlib/top_ca.lib	(working copy)
@@ -888,7 +888,7 @@
 BOND P OP1 P OP2 P O5' O5' C5' C5' C4' C4' O4'
 BOND C4' C3' O4' C1' C1' N9 C1' C2' N9 C4 N9 C8
 BOND C4 N3 C4 C5 N3 C2 C2 N1 N1 C6 C6 N6
-BOND C6 C5 C5 N7 N7 C8
+BOND C6 C5 C5 N7 N7 C8 C2' C3' C3' O3' O3' +P
 IMPR N6 N1 C5 C6
 IC -O3'  P     O5'   C5'       1.6001  101.4500  -39.2500  119.0000    1.4401
 IC -O3'  O5'   *P    OP1       1.6001  101.4500 -115.8200  109.7400    1.4802
Index: modlib/top_mcwo.lib
===================================================================
--- modlib/top_mcwo.lib	(revision 6539)
+++ modlib/top_mcwo.lib	(working copy)
@@ -1061,7 +1061,7 @@
 BOND P OP1 P OP2 P O5' O5' C5' C5' C4' C4' O4'
 BOND C4' C3' O4' C1' C1' N9 C1' C2' N9 C4 N9 C8
 BOND C4 N3 C4 C5 N3 C2 C2 N1 N1 C6 C6 N6
-BOND C6 C5 C5 N7 N7 C8
+BOND C6 C5 C5 N7 N7 C8 C2' C3' C3' O3' O3' +P
 IMPR N6 N1 C5 C6
 IC -O3'  P     O5'   C5'       1.6001  101.4500  -39.2500  119.0000    1.4401
 IC -O3'  O5'   *P    OP1       1.6001  101.4500 -115.8200  109.7400    1.4802
Index: modlib/top.lib
===================================================================
--- modlib/top.lib	(revision 6539)
+++ modlib/top.lib	(working copy)
@@ -3344,6 +3344,7 @@
 BOND C1'  N9        C1'  C2'       N9   C4        N9   C8        C4   N3
 BOND C4   C5        N3   C2        C2   N1        N1   C6        C6   N6
 BOND N6   H61       N6   H62       C6   C5        C5   N7        N7   C8
+BOND C2'  C3'       C2'  O2'       O2'  HO2'      C3'  O3'       O3'  +P
 BOND C1'  H1'       C2'  H2'       C3'  H3'       C4'  H4'       C5'  H5'
 BOND C5'  H5''      C8   H8        C2   H2        C2'  H2''
 THET C1'  C2'  H2''  C3'  C2'  H2''  H2'' C2'  H2'
