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• W2335498348 abstract "In contrast to the neutral macrocycle [UN*2(N,C)] (1) [N* = N(SiMe3)3; N,C = CH2SiMe2N(SiMe3)] which was quite inert toward I2, the anionic bismetallacycle [NaUN*(N,C)2] (2) was readily transformed into the enlarged monometallacycle [UN*(N,N)I] (4) [N,N = (Me3Si)NSiMe2CH2CH2SiMe2N(SiMe3)] resulting from C—C coupling of the two CH2 groups, and [NaUN*(N,O)2] (3) [N,O = OC(═CH2)SiMe2N(SiMe3)], which is devoid of any U—C bond, was oxidized into the UV bismetallacycle [Na{UN*(N,O)2}2(μ-I)] (5). Sodium amalgam reduction of 4 gave the UIII compound [UN*(N,N)] (6). Addition of MN3 or MCN to the (N,C), (N,N), and (N,O) metallacycles 1, 4, and 5 led to the formation of the anionic azide or cyanide derivatives M[UN*2(N,C)(N3)] [M = Na, 7a or Na(15-crown-5), 7b], M[UN*2(N,C)(CN)] [M = NEt4, 8a or Na(15-crown-5), 8b or K(18-crown-6), 8c], M[UN*(N,N)(N3)2] [M = Na, 9a or Na(THF)4, 9b], [NEt4][UN*(N,N)(CN)2] (10), M[UN*(N,O)2(N3)] [M = Na, 11a or Na(15-crown-5), 11b], M[UN*(N,O)2(CN)] [M = NEt4, 12a or Na(15-crown-5), 12b]. In the presence of excess iodine in THF, the cyanide 12a was converted back into the iodide 5, while the azide 11a was transformed into the neutral UV complex [U(N{SiMe3}SiMe2C{CHI}O)2I(THF)] (13). The X-ray crystal structures of 4, 7b, 8a–c, 9b, 10, 12b, and 13 were determined." @default.
• W2335498348 created "2016-06-24" @default.
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• W2335498348 date "2011-11-03" @default.
• W2335498348 modified "2023-09-26" @default.
• W2335498348 title "Iodide, Azide, and Cyanide Complexes of (<i>N</i>,<i>C</i>), (<i>N</i>,<i>N</i>), and (<i>N</i>,<i>O</i>) Metallacycles of Tetra- and Pentavalent Uranium" @default.
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• W2335498348 doi "https://doi.org/10.1021/ic201994w" @default.
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