Variable Ag-O bonding patterns in silver cyclic amide tri-aryl-phosphine complexes

The solid-state structures of five new tri-arylphosphine silver cyclic amide complexes having a systematic variation in the ring structures have been resolved. Normal Ag-N bonding and variable, weaker Ag-O bonding interactions, which can be attributed to the ring modifications, form the basis of the bonding patterns. Reported here are the solid-state structures of silver complexes of tri-arylphosphine derivatives of silver 1(2H)-phthalazinone, silver phthalimide, silver 1,2,3-benzotriazin-4(3H)-one, silver 2H-1,3-benzoxazine-2,4(3H)-dione and silver 2,3-dihydro-1,4-phthalazine- dione. The unit cell parameters are: P-1, a = 11.179(2) angstrom, b = 15.508(3) angstrom, c = 22.636(5) angstrom, alpha = 104.30(3)angstrom, beta = 95.39(3)angstrom, gamma = 94.62(3)angstrom; C2/c, a = 17.3600(8) angstrom, b = 15.4930(8) angstrom, c = 15.0760(7)angstrom, beta = 113.911(2)degrees; P-1, a = 11.0656(2) angstrom, b = 11.9447(2) angstrom, c = 17.4764(3) angstrom, alpha = 79.5254(9)angstrom, beta = 80.2877(9)degrees, gamma = 68.9136(7)angstrom; P-1, a = 10.5743(4) angstrom, b = 11.8439(4)angstrom, c = 19.0110(8) angstrom, alpha = 102.4280(13)angstrom, beta = 104.0330(12)angstrom, gamma = 100.2520(18)angstrom, P-1, a = 13.6908(3)angstrom, b = 16.2230(4) angstrom, c = 18.3678(7)angstrom, alpha = 86.8920(10)angstrom, beta = 69.5290(10)angstrom, gamma = 70.7840(10)angstrom, respectively. Four of the complexes include ligand chelation by Ag-O bonding to the adjacent carbonyl in addition to the main Ag-N connection.