Benz[cd]indol-2(1H)-one at 298 and 100 K

Khan, S.I.; Knobler, C.B.; Maverick, E.F.

doi:10.1107/S0108270111050281

Figure 5
The crystal packing for the major-occupancy molecule of (I) at 100 K, space-filling style, colored according to symmetry operation (MercuryCSD; Macrae et al., 2008

). The b axis is vertical in this view. Hydrogen-bonded pairs of molecules related by centers of symmetry form adjacent stacks. The stacks related by the n-glide (purple and green in the electronic version of the paper) form an angle of 56° to the (x, y, z) and (−x, −y, −z) (gray and yellow) stacks. [Symmetry codes: (i) x, y, z; (ii) −x, −y, −z + 1; (iii) x, y + 1, z; (iv) −x, −y + 1, −z + 1; (v) x, y − 1, z; (vi) −x, −y − 1, −z + 1; (vii) −x + $[{1\over 2}]$ , y + $[{1\over 2}]$ , −z + $[{1\over 2}]$ ; (viii) x + $[{1\over 2}]$ , −y + $[{1\over 2}]$ , z − $[{1\over 2}]$ ; (ix) −x + $[{1\over 2}]$ , y − $[{1\over 2}]$ , −z + $[{1\over 2}]$ ; (x) x + $[{1\over 2}]$ , −y − $[{1\over 2}]$ , z − $[{1\over 2}]$ ; (xi) x + 1, y + 1, z; (xii) −x + 1, −y + 1, −z + 1.] The center of symmetry between (i) and (ii) is at (0, 0, $[{1\over 2}]$ ), and that between (vii) and (viii) is at ( $[{1\over 2}]$ , $[{1\over 2}]$ , 0).

STRUCTURAL
CHEMISTRY

ISSN: 2053-2296

Volume 68| Part 1| December 2012| Pages o1-o6

doi:10.1107/S0108270111050281

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