210990-33-3Relevant academic research and scientific papers
Synthesis of Indium Amide Compounds
Kim, Jungsook,Bott, Simon G.,Hoffman, David M.
, p. 3835 - 3841 (1998)
Indium trichloride reacts with 3 equiv of lithium amide in diethyl ether to give In(NRR′)3 (R = Ph or t-Bu, R′ = SiMe3; R = t-Bu, R′ = SiHMe2) and with 3 or 4 equiv of LiNMe(SiMe3) to yield Li[In{NMe(SiMe3)}4]. The chloride also reacts with LiNPh2 in THF to give the salt Li[In(NPh2)3Cl] and with LiNRR′ in pyridine to yield the neutral adduct In(NRR′)3(py) (R = R′ = Ph; R = Me, R′ = SiMe3). The volatile liquids In[N(t-Bu)(SiHMe2)]3 and In[NMe(SiMe3)]3(Py) react with p-Me2Npy to form the solid compounds In[N(t-Bu)(SiHMe2)]3(p-Me2Npy) and In[NMe(SiMe3)]3(p-Me2Npy), respectively. X-ray crystallographic studies show that In(NPh2)3(py), In[N(t-Bu)(SiHMe2)]3(p-Me2Npy), and the ether adduct of In[NPh(SiMe3)]3 contain nearly planar In(amide)3 fragments. Crystallographic studies also show that the anion in the salt [Li(THF)4][In(NPh2)3Cl] is nearly tetrahedral and in [Li(p-Me2Npy)][In{NMe(SiMe3)}4] the tetrahedral-like anion is bound to the Li cation via two amide nitrogens. The Li in the latter structure is also bonded to p-Me2Npy, resulting in a planar three-coordinate geometry for Li. Crystal data are the following, C31H52N3OSi3In at -50 °C; P21/n (monoclinic), a = 11.003(2) A?, b = 18.678(3) A?, c = 17.618(3) A?, β= 95.42(1)°, and Z = 4. C41H35N4In·C7H8 at -50 °C: P1? (triclinic), a = 10.112(2) A?, b = 12.786(3) A?, c = 15.870(5) A?, α = 87.42(2)°, β = 74.95(2)°, γ = 78.15(2)°, and Z = 2. C25H58N5Si3In at -50 °C: P21/c (monoclinic), a = 9.797(3) A?, b = 18.203(6) A?, c = 19.592(5) A?, β = 100.27(2)°, and Z = 4. C52H62ClInLiN3O4 at 23 °C: P21/n (monoclinic), a = 16.076(2) A?, b = 17.185(2) A?, c = 18.447(3) A?, β= 97.41(1)°, and Z =4. C23H58InLiN6Si4 at 23 °C: P1 (triclinic), a = 15.792(3) A?, b = 16.345(3) A?, c = 16.678-(3) A?, α = 62.69(1)°, β= 81.00(1)°, γ = 86.94(1)°, and Z = 4.
