Table 1.
List of IR, UV-vis, EPR and Electrochemical Parameters of Selected Multinuclear Metal Nitrosyl Complexes
| Complexes | IR (vNO, cm−1) | UV-Vis (nm) |
E1/2° (V) | EPR g value |
ref |
|---|---|---|---|---|---|
| [Fe2(µ-Sn-Pr)2(NO)4], 2a | 1809, 1774, 1747 (THF) 1782, 1729 (KBr) |
239(sh), 312, 363 |
−1.16, −1.84 | 59 | |
| [Fe2(µ-St-Bu)2(NO)4], 2b | 1805, 1770, 1743 (THF) 1776, 1725 (KBr) |
241, 313, 358 | −1.20, −1.81 | 59 | |
| Fe2(µ-SMePr)2(NO)4], 2c | 1818, 1786, 1755 (THF) 1796, 1728 (KBr) |
389 | − 0.99 | 59 | |
| Fe2(µ-SMe2Pr)2(NO)4], 2d | 1823, 1793, 1759 (THF) 1791, 1748 (KBr) |
237(sh), 363 | − 0.91 | 59 | |
| [Fe2(µ-Sn-Pr)2(NO)4]−, 2a− | 1673, 1655 (THF) | 1.9988 | 59 | ||
| [Fe2(µ-St-Bu)2(NO)4]−, 2b− | 1670, 1650 (THF) | 1.9988 | 59 | ||
| [Fe2(µ-SMePr)2(NO)4]−, 2c− | 1690, 1670 (THF) | 2.0036 | 59 | ||
| [Fe2(µ-SMe2Pr)2(NO)4]−, 2d− | 1693, 1674 (THF) | 2.0040 | 59 | ||
| [Fe(NO)(SH)(µ-S)]22−, 7 | 1683, 1668 (CH3CN) 1671, 1651 (KBr) |
329, 407, 585 | 80 | ||
| [(µ-S(CH2)2NH2)Fe(NO) 2]2−, 8 | 1658, 1678 (THF) | 320, 358, 452, 650, 962 |
81 | ||
| [(µ-SC6H5)(µ-S(CH2)2NH3)Fe2(NO)4]−, 9− | 1665, 1685 (THF) | 1.999 | 81 | ||
| [(NO)Fe(bme-dach)Fe(NO)2][BF4], 10 | 1795, 1763, 1740 (THF) | 84 | |||
| [(NO)2Fe(µ-SEt)(µ-S)Fe(NO)2]−, 13 | 1710, 1687 (THF) | 259, 326, 376, | −1.61 | 89 | |
| (NO)2FePPh2-CH2-PPh2Fe(NO)2, 18a | 1760, 1719, 1702 (KBr) | 103 | |||
| (NO)2FePPh2-C≡C-PPh2Fe(NO)2, 18b | 1767, 1716 (KBr) | 103 | |||
| (NO)2FePPh2-(CH2)4-PPh2Fe(NO)2, 18c | 1755, 1701 (KBr) | 103 | |||
| (NO)2FePPh2p-C5H4-PPh2Fe(NO)2, 18d | 1760, 1707 (KBr) | 103 | |||
| [(NO)2Fe]2(PPh2-CH2-PPh2)2, 19a | 1733, 1721, 1687, 1668 (KBr) | 103 | |||
| [(NO)2Fe]2(PPh2-C≡C-PPh2)2, 19b | 1723, 1679 (KBr) | 103 | |||
| [Fe2(C14H12N3S)2(NO)4], 20 | 1789, 1732 (CH2Cl2) 1781, 1715 (KBr) |
229, 287, 376(sh), 437(sh) |
105 | ||
| [Fe(NO)2(µ-OPh)]22–, 21 | 1651, 1602 (CH3CN) 1651, 1600 (KBr) |
272, 310, 381, 854 |
107 | ||
| [Fe(NO)2(µ-SC6H4-o-N(CH3)2)(µ- CO)Fe(NO)2]−, 22 |
1705, 1691 (THF) | 314, 381, 606, 975 |
108 | ||
| [Co2(NO)4(TC-6,6)], 23 | 1799, 1722 (KBr) | 382, 454, 619(sh) |
109 | ||
| [(ON)Fe(µ-S,S-C6H4)]3, 36 | 1760 (THF) 1751 (KBr) |
145 | |||
| [Co(NO)2(SPh)]3, 37 | 1844, 1819, 1780, 1764 (THF) 1840, 1817, 1779, 1744 (KBr) |
325, 421, 656 | 146 | ||
| [Fe4S4(NO)4]−, 40 | 1725 (CH2Cl2) | 2.014, 2.026, 2.049 |
169 | ||
| (PPN)2[Fe4S4(NO)6], 41 | 1700, 1668 (KBr) | 170 | |||
| [Fe4(µ3-S)2(µ2-NO)2(NO)6]2−, 42 | 1742, 1701, 1668 (CH3CN) 1739, 1702, 1685, 1668, 1510 (KBr) |
273, 343, 478 | 171 | ||
| Fe4(S3’)2(NO)8 | 1779, 1755 (THF) | 172 | |||
| Fe4(NO)8(Im-H)4, 43 | 1796, 1726 (THF) | 2.023(solid) 2.031(THF) |
174 | ||
| (Me4N)[Fe4S3(NO)7], RBS | 1799, 1744, 1710 (CH3CN) 1798, 1728, 1712 (KBr) |
265, 357, 434, 584 |
−1.09, −1.71, -2.21 |
161 | |
| [(n-Bu)4N]2[Fe6S6(NO)6], 44 | 1694 (CH3CN), 1683 (KBr) | 259, 297 | −0.04(irr), - 0.14, −1.33 |
161 | |
| [(n-Bu)4N]2[Fe6Se6(NO)6], 45 | 1698 (CH3CN), 1678 (KBr) | 288 | 0.07 (irr), - 0.33, −1.32 |
161 | |
| [Fe(BMPA-Pr)(NO)]6[ClO4], 46 | 1777 (KBr) | 255, 350, 354, 430 |
181 |