“…Selectedb ond lengths[ ]and angles [8]: 2:P1 ÀN1 1.696(1), P1ÀO1 1.667(1), P1ÀO2 1.667(1), P1ÀCl12.038(1), P1À Cl2 2.047(1); O1-P1-O2 167.91 (5), O1-P1-N188.86(4), O1-P1-Cl1 95.71(4), O1-P1-Cl2 87.52 (3), O2-P1-N18 8.71(4), O2-P1-Cl1 96.21(4), O2-P1-Cl2 87.49(4), N1-P1-Cl1 111.11 (4), N1-P1-Cl2 143.98(4), Cl1-P1-Cl2 104.91 (2). 3:P 1-N1 1.702(4), P1-O1 1.661(3), P1-O21 .663(3), P1-Br1 2.219(2), P1-Br 2.235(2);O 1-P1-O2 165.42 (19), O1-P1-N188.51 (17), O1-P1-Br1 96.98 (13), O1-P1-Br2 86.40 (12),O 2-P1-N18 9.94 (18), O2-P1-Br1 97. 29(14), O2-P1-Br2 86.82 (12),N1-P1-Br1 107.88 (15), N1-P1-Br2 146.11(16), Br1-P1-Br2 105.99 (5).…”