Table 3. Band Assignment for Near-Infrared Spectra of ANiSH:B, ANiSH:Ag, and AMgSH:Aga.
| band wavenumber
(cm–1) |
literature |
||||
|---|---|---|---|---|---|
| ANiSH:B | ANiSH:Ag | AMgSH:Ag | (8) | (10) | assignment |
| 440; 447 | 440; 447 | 440; 455 | 438; 457 | 438; 450 | (ν2) SO4(sb) |
| 534; 568 | 534; 568 | 533; 568 | 544 | 549; 569 | H2O(L) |
| 642 | 646 | 651 | 615 | 614 | (ν4) SO4(ab) |
| 667 | 667 | 670 | 627; 690 | 625 | |
| 728 | 761; 794 | 741; 759 | 725 | 744 | H2O(r) |
| 786 | 848 | 790; 815 | 743 | 769 | |
| 848; 882 | 882 | 837; 882 | 807 | 770 | |
| 987 | 987 | 983 | 983 | 980 | (ν1) SO4(ss) |
| 1036 | 1036 | 1036 | 1034 | (ν2 + ν4) SO4 | |
| 1099 | 1096 | 1099 | 1085 | 1094 | (ν3) SO4(as) |
| 1139 | 1127 | 1134 | 1144 | 1145 | |
| 1203 | 1205 | 1199 | 1274 | ||
| 1453 | 1450 | 1454 | 1445 | 1432 | (ν4) NH4(ab) |
| 1494 | 1494 | 1494 | 1465 | 1468 | |
| 1703 | 1703 | 1703 | 1709 | 1709 | H2O–NH4 (ν2)(sb) |
| 2449 | 2051 | 2047 | (ν2 + L) NH4 | ||
| 2117 | 2115 | (ν2 + ν3) SO4 | |||
| 2240 | 2240 | (2ν3) SO4 | |||
| 2340 | 2340 | 2340 | CO2 da atmosfera ambiente | ||
| 2361 | 2361 | 2361 | |||
| 2900 | 2900 | 2900 | (2ν4) NH4 | ||
| 3108 | 3108 | 3108 | (ν3) NH4(as) | ||
| 3364 | (ν1) H2O(ss) | ||||
| 3445 | 3465 | (ν3) H2O(as) | |||
| 3506 | (ν1 + L) H2O | ||||
| 4166 | 4136 | 4150 | 4000 a 4400 | Y–OH29,30 | |
| 4227 | 4185 | 4226 | |||
| 4336 | 4342 | 4331 | |||
| 4499 | 4499 | 4499 | 4500 a 7000 | H–O e N–H combinação de modos (sb + ss)29,30 | |
| 4616 | 4611 | 4611 | |||
| 4916 | 4921 | 4906 | |||
| 5034 | 5085 | 5040 | |||
| 5341 | 5341 | 5341 | |||
| 5631 | 5631 | 5646 | |||
a
T = translation, L = libration, * = octahedral complex M(H2O)62+, tw = twisting, r = rocking, w = wagging, ss = symmetric stretching, sb = symmetric bending, ab = asymmetric bending, and as = asymmetric stretching.