Fig. 6. Solid-state structures of the cyanide complexes [K(dibenzo-18-crown-6)][1-μ₂-CN]-(CH₂Cl₂) (a) and [K(dibenzo-18-crown-6)][2-μ₂-CN]-(CH₂Cl₂)₂ (b). Thermal ellipsoids are drawn at the 50% probability level. The [K(dibenzo-18-crown-6)]⁺, the solvate molecules and the hydrogen atoms are omitted for clarity. The cyanide anions shown correspond to that with the higher positional occupancy. Selected bond lengths [Å] and angles [°] for [1-μ₂-CN]^–: B1–C1 1.635(4), B1–C13 1.649(4), B1–C22 1.639(4), B1–N2 1.58(2), B2–C8 1.641(4), B2–C31 1.643(4), B2–C40 1.657(3), B2–C72 1.54(4) C72–N2 1.21(4); C1–B1–C13 121.1(2), C13–B1–C22 113.8(2), C1–B1–C22 108.3(2), C1–B1–N2 100.9(7), C13–B1–N2 98.7(8), C22–B1–N2 112.9(7), B1–N2–C72 157.0(19), C8–B2–C31 108.4(2), C8–B2–C40 118.0(2), C31–B2–C40 115.3(2), C8–B2–C72 99.8(8), C31–B2–C72 115.8(9), C40–B2–C72 98.5(9), B2–C72–N2 163(2); for [2-μ₂-CN]^–: C1–B1 1.657(5), C21–B1 1.644(5), C30–B1 1.665(5), C81–B1 1.66(4), C81–N1 1.16(8), C8–B2 1.632(5), C39–B2 1.646(5), C48–B2 1.649(5), N1–B2 1.64(5); C1–B1–C21 109.1(3), C1–B1–C30 120.2(3), C21–B1–C30 112.7(3), C1–B1–C81 102.6(11), C21–B1–C81 111.4(16), C30–B1–C81 99.8(15), B1–C81–N1 158(6), C8–B2–C39 113.5(3), C8–B2–C48 113.1(3), C39–B2–C48 118.0(3), C8–B2–N1 99.8(15), C39–B2–N1 110.6(18), C48–B2–N1 99.1(13), B2–N1–C81 168(6).