REACTION OF MERCURY(II) TRIFLUOROACETATE
1571
+
CH2COCH3
AlBr3
IX + CH3COBr
Fe
PF6
HgBr(OCOCF3)
XXIII
Table 2. IR and 1H NMR spectra of mercury-containing salts VIII XXII and compound XXIII
Comp.
no.
1
IR spectrum, , cm
1H NMR spectrum, , ppm (2JHgH, Hz)
VIII
IX
3120, 2965, 1695, 1508, 1465, 1428, 1288, 1204, 1160, 6.68 s (5H, C6H5Fe), 5.38 s (5H, C5H5), 2.83 s (2H, CH2,
1078, 1039, 852, 745, 710, 628, 550, 468 J 184)
3125, 2950, 1700, 1506, 1470, 1430, 1278, 1200, 1162, 6.67 s (5H, C6H5Fe), 5.40 s (5H, C5H5), 2.83 s (2H, CH2,
1081, 1042, 860, 741, 705, 622, 556, 460 J 185)
X
3120, 2920, 1705, 1512, 1472, 1428, 1270, 1206, 1160, 6.68 s (5H, C6H5Fe), 5.38 s (5H, C5H5), 3.24 s (1H, CH,
1075, 1030, 1001, 832, 752, 706, 628, 552, 472 J 125)
XI
3140, 2960, 1700, 1506, 1483, 1430, 1268, 1200, 1158, 6.65 s (5H, C6H5Fe), 5.38 s (5H, C5H5), 3.22 s (1H, CH,
1080, 1042, 852, 745, 700, 628, 552, 468
1720, 1442, 1304, 1218, 1145, 1042, 843, 812, 730,
625, 530, 450
2970, 1718, 1445, 1300, 1212, 1150, 1042, 850, 810,
732, 628, 542, 454
J 126)
XII
XIII
XIV
3140, 2950, 1695, 1505, 1460, 1430, 1290, 1208, 1155, 7.50 7.63 m (5H, C6H5), 6.71 d (5H, C6H5Fe), 5.43 s
1080, 1040, 848, 742, 715, 635, 560, 500, 464
(5H, C5H5), 4.46 s (1H, CH, J 110)
XV
3130, 1690, 1502, 1431, 1215, 1162
XVI
3140, 1505, 1460, 1428, 1330, 1090, 1040, 850, 726, 7.43 7.66 m (20H, 4C6H5), 6.78 s, 6.58 s, 6.15 s (10H,
632, 576, 480 2C6H5Fe), 5.31 s, 5.26 s (10H, 2C5H5)
XVII 3122, 2960, 1700, 1512, 1460, 1430, 1288, 1200, 1162, 6.68 s (5H, C6H5Fe), 5.37 s (5H, C5H5), 2.75 s (2H, CH2,
1040, 836, 755, 712, 620, 558, 462 J 75)
XVIII 3120, 2960, 1695, 1508, 1472, 1428, 1279, 1205, 1170, 6.68 s (5H, C6H5Fe), 5.36 s (5H, C5H5), 2.76 s (2H, CH2,
1043, 853, 812, 763, 710, 625, 552, 471 J 76)
3100, 2960, 1517, 1500, 1460, 1428, 1268, 1162, 1064, 6.68 s (5H, C6H5Fe), 5.36 s (5H, C5H5), 2.84 s (2H, CH2,
1026, 850, 748, 633, 552, 468 J 178)
3150, 2965, 1510, 1462, 1426, 1287, 1162, 1082, 1039, 7.52 7.63 m (5H, C6H5), 6.72 d (5H, C6H5Fe), 5.43 s (5H,
XIX
XX
852, 743, 712, 642, 560, 510, 460
3100, 1465, 1421, 1160, 1015, 860, 512, 455
C5H5), 4.48 s (1H, CH, J 98)
6.63 s (10H, 2C6H5Fe), 5.45 s (10H, 2C5H5), 2.79 s (4H,
2CH2, J 130)
XXI
XXII 3152, 1502, 1460, 1420, 1175, 1018, 858, 528, 460 7.48 7.60 m (10H, 2C6H5), 6.68 d (10H, 2C6H5Fe), 5.36 s
(10H, 2C5H5), 4.42 s (2H, 2CH, J 68)
XXIII 3120, 2920, 1705, 1508, 1470, 1420, 1325, 1285, 1167, 6.42 s (5H, C6H5), 5.22 s (5H, C5H5), 4.21 s (2H, CH2),
1069, 1033, 850, 786, 720, 634, 510, 465
2.26 s (3H, CH3)
1
Apart from chemical transformations, the structure
of compounds VIII XXIII was confirmed by
elemental analysis (Table 1) and 1H NMR and
IR spectroscopy (Table 2). All the products showed in
the IR spectra absorption bands of various intensities
in the regions 1420 1460, 1112 1125, 1005 1015,
850 860, and 712 730 cm , which belong to vibra-
tions of bonds in the ( 6-arene)( 5-cyclopentadienyl)-
iron fragment [2, 10, 11]. In the IR spectra of com-
pounds VIII XV, XVII, and XVIII having a tri-
fluoroacetate group we also observed strong absorp-
1
tion bands at 1690 1720 and 1200 cm , which arise
RUSSIAN JOURNAL OF GENERAL CHEMISTRY Vol. 73 No. 10 2003