Reaktion von (R,R)‐(N,N′)‐Diisopropylcyclohexyl‐1,2‐diamin mit Berylliumchlorid. Kristallstrukturen von (R,R,SN,SN′)‐[(C12H26N2)BeCl2] und (R,R,SN,SN′)‐[(C12H26N2)BeCl(N3)

Abstract

AbstractReaction of (R,R)‐(N,N′)‐Diisopropylcyclohexyl‐1,2‐diamine with Beryllium Chloride. Crystal Structures of (R,R,SN,SN′)‐[(C12H26N2)BeCl2] and (R,R,SN,SN′)‐[(C12H26N2)BeCl(N3)](R,R)‐(N,N′)‐diisopropylcyclohexyl‐1,2‐diamine reacts with equimolar amounts of BeCl2 in dichloromethane suspension to give the donor acceptor complex (R,R,SN,SN′)‐[(C12H26N2)BeCl2] (1). The reaction of 1 with excess trimethylsilylazide in dichloromethane solution leads to the formation of the azido derivative (R,R,SN,SN′)‐[(C12H26N2)BeCl(N3)] (2). Both complexes are characterized by X‐ray diffraction and by IR spectroscopy.1 · 0.5CH2Cl2: Space group P6122, Z = 6, lattice dimensions at 193 K: a = b = 1390.3(1), c = 1624.8(1) pm, R1 = 0.0509. In the chiral complex 1 the BeCl2 unit forms a BeN2C2 chelate ring with Be–N distances of 199.8(4) pm. The molecules are associated via Cl···H–N hydrogen bridges along [001].2: Space group P21, Z = 6, lattice dimensions at 193 K: a = 1501.7(2), b = 968.6(2), c = 1629.2(4) pm, β = 90.03(3)°, R1 = 0.0981. The structure of 2 consists of three independent chiral units (R,R,SN,SN′)‐[(C12H26N2)BeCl(N3)], which are associated via Cl···H–N and Nα···H–N hydrogen bridges along [100], Nα being Nα atoms of the azido groups.