... Volume: Page ... empirical formula, C 17 H 31 N 2 O 3 V 1, C 16 H 28 N 1 O 4 V 1, C 15 H 26 N 1 O 3 V 1, C 16 H 25 N 2 O 3 V 1, C 15 H 25 N 2 O 5 V 1, C 24 H 36 N 2 O 4 Br ... b, Å, 10.6487(8), 10.340(1), 13.2611(6), 12.8258(7), 10.7161(2), 9.2848(8), 10.1850(5), 33.138(1 ...