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Table 2 Similarity relationships amongst oxindoles studied (D = dimensionality, # = number of structures)

From: Synthesis and solid-state characterisation of 4-substituted methylidene oxindoles

SC D Description Figs. # Base vector(s) Dependencies
A01 0 N-H…O H-bonded oxindole dimer 7 7   Primary SC
A11 1 A01 dimer ‘stack’ 8 3 t1 A11→A01
A12 1 A01 dimer ‘sheared tape’ 9 2 t2 A12→A01
A13 1 A01 dimer ‘tape’ 10 2 t3 A13→A01
A31 3 Isostructural set   2 t1, t4, t5 A31→A11
B11 1 ring ‘edge to face’ tape 11 2 t6 Primary SC