Table 7.
Transition metal N2 complexes with side-on interactions to alkali cations.
| Complex | alkali cation | N-N bond length (Å) | νNN (cm−1) | cation-N distances (Å) |
|---|---|---|---|---|
| (2-[2,6-iPr2C6H3N=CMe]-6-[2,6-iPr2C6H3N-C=CH2]C5H3N)Fe(N2)[η2-Na(THF)] (8) | Na | 1.090(5) | 1912 | 2.954(4), 2.287(5) |
| [(SiMe3N)2Y(THF)]2(μ-η2:η2-N2)(η2-K)(THF) (25) | K | 1.405(3) | 989 | 2.864(2), 2.885(2) |
| [(n5-C9H5-1-iPr-3-Me)2ZrCl]2(μ-N2)(η2-Na)2 (26) | Na | 1.352(5) | - | 2.543(3), 2.619(3) |
| [(n5-C9H5-1-iPr-3-Me)2Zrl]2(μ-N2)(η2-Na)2 (28) | Na | 1.316(5) | - | 2.461(3), 2.556(3) |
| [{Me2Si(η5-C5Me4)(η5-C5H3-3-2Ad)}ZrCl]2(μ-N2)(η2-K) (29) | K | 1.223(9) | - | - |
| [(2,4,6-Me3C6H3)3V]2(μ-N2)(η2-Na) (30) | Na | 1.28(2) | - | 2.55(3), 2.63(3) |
| [{p-tBu-calix[4]-(O)4}Nb]2(μ-η2:η2-N2)(μ-Na)3Na (31) | Na | 1.403(8) | - | η1: 2.33(4)*, η2: 2.5(1)* |
| [{3,5-(2,4,6-iPr3C6H2)N(CH2)2}2(3,5-Me2C6H3)N(CH2)N]Mo(N2)[η2-Na(THF)2] (32) | Na | 1.171(6) | - | 2.976(5), 2.353(6) |
| [{N(2-P(CHMe2)2-4-MeC6H3)2}Co(μ-N2-Na)]2[η2-Na(THF)2]2 (33) | Na | - | 1784 | - |
| [(meso-Me8(porph)Ru(C≡CH)]2(μ-N2)(η2-Na)4 (34) | Na | 1.28(2) | - | 2.59(7)* |
| [{(2,6-iPr2C6H3NCtBu)2CH}Fe]2(μ-N2)(η2-Na)2 (35) | Na | 1.213(4) | 1583 | 2.488(7)* |
| [{(2,6-iPr2C6H3NCtBu)2CH}Fe]2(μ-N2)(η2-K)2 (36) | K | 1.241(7) | 1589 | 2.70(1)* |
| [{(2,6-iPr2C6H3NCtBu)2CH}Co]2(μ-N2)(η2-Na)2 (37) | Na | 1.211(3) | 1598 | 2.49(1)* |
| [{(2,6-iPr2C6H3NCtBu)2CH}Co]2(μ-N2)(η2-K)2 (38) | K | 1.220(2) | 1599 | 2.706(3)* |
| [{(2,6-iPr2C6H3NCtBu)2CH}Ni]2(μ-N2)(η2-K) | K | 1.143(8) | 1825 | 2.77(1)* |
| [{(2,6-iPr2C6H3NCtBu)2CH}Ni]2(μ-N2)(η2-K)2 (39) | K | 1.185(8) | 1696 | 2.716(9)* |
| [{(2,6-iPr2C6H3NCtBu)2CH}Ni]2(μ-N2)(η2-Na)(η2-K) (40) | Na/K | 1.195(4) | 1689 | Na: 2.608(4)* K: 2.730(4)* |
| [{(2,6-iPr2C6H3NCtBu)2CH}Ni]2(μ-N2)(η2-Na)2 (41) | Na | 1.192(3) | 1685 | 2.524(4)* |
| [{(2,6-iPr2C6H3NCMe)2CH}Fe]2(μ-N2)(η2-K)2 (42-K) | K | 1.215(6) | 1625 | 2.78(4)* |
*
Denotes average of distances