( NH 3 ) 4 ] , a Structure with an Unexpected Rod Packing
نویسندگان
چکیده
rra/w-[Ru(S03H)2(N H ,)4], monoclinic, space group P2 Jn, Z =2, a 619.4(3), b = 701.8(3), c = 1068.6(6) pm, ß = 96.32(3)°. In the centrosymmetric octahedral complex the two inde pendent R u -N bonds are equal within experimental error (average R u -N 214.0 pm). The rather short R u -S bonds (227.6 pm) indicate a very weak rrarcs-influence o f the S 0 3H li gand. Caused by the protonation, one of the S —O bonds in the S 0 3H ligand is long (161.4 pm), the other two are short (mean 148.0 pm). The complex units are linked by pairs o f O H ■ ■ • O hydrogen bonds (268.9 pm) to form rods parallel b (symmetry (b) • 1), which in turn are held together by N H O bonds in a pseudo-hexagonal array. A packing coefficient o f 0.76 is estimated.
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