and trans (R = (i)Pr). There is IR evidence for protonic-hydridic bonding between the NH of the aza salts and the iridium hydride in solution. In single crystals of [K(18-crown-6)][cis-IrH(4)(PR(3))(2)] (R = Ph, (i)Pr) and [K(aza-18-crown-6)][cis-IrH(4)(P(i)Pr(3))(2)], the potassium bonds to three hydrides on a face of the iridium octahedron according to X-ray diffraction studies. Significantly, [K(1
化合物[K(Q)] [IrH(4)(PR(3))(2)](Q = 18冠-6,R = Ph,(i)Pr,Cy; Q =氮杂18冠-6,R =(i)Pr; Q = 1,10-diaza-18-crown-6,R = Ph,(i)Pr,Cy; Q = cryptand-222,R =(i)Pr,Cy)在IrH(5)(PR(3))(2)与KH和Q的反应中形成。在溶液中,[IrH(4)(PR(3))(2)](-的盐的立体
化学)对反阳离子非常敏感:反式为cryptand-222
钾盐(R = Cy,(i)Pr)或仅顺式(R = Cy,Ph)为冠盐和氮杂皇冠酸
钾盐或以下混合物顺式和反式(R =(i)Pr)。有IR证据表明溶液中氮杂盐的NH与氢化
铱之间存在质子-氢键结合。在[K(18-crown-6)] [cis-IrH(4)(PR(3))(2)]的单晶中(R = Ph,(i)Pr)和[K(aza-18-crown)