@MOLECULE (mu-1,2-ethynediyl-kappac~1~:kappac~2~)disodium 4 3 0 0 0 SMALL USER_CHARGES @ATOM 1 NA -2.5948 0.0000 -0.0000 Na 1 UNL11111111 0.7783 2 C -0.6038 0.0000 -0.0000 C.1 1 UNL11111111 -0.7774 3 C 0.6038 -0.0000 0.0000 C.1 1 UNL11111111 -0.7797 4 NA 2.5948 -0.0000 0.0000 Na 1 UNL11111111 0.7788 @BOND 1 1 2 1 2 2 3 3 3 3 4 1