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Table 2 The geometry of the hydrogen bonds (Å, °)

From: Synthesis and crystal structures of 5'-phenylspiro[indoline-3, 2'-pyrrolidin]-2-one derivatives

D-H···A D(D-H) D(H···A) D(D···A) <(DHA)
Compound (I)
N(2)-H(6)···O(1)vi 0.87(3) 2.55 3.360(3) 153
N(3)-H(10)···O(3)v 0.83(3) 2.16 2.894(3) 148
C(2)-H(2)···O(1)iv 0.93 2.54 3.450(3) 165
C(5)-H(5)···N(2) 0.93 2.58 2.888(3) 100
C(7)-H(7)···O(3) 0.98 2.55 3.055(3) 112
C(9)-H(9)···O(2) 0.98 2.34 2.810(3) 108
Compound (II)
N(3)-H(10)···O(3)iii 0.84(3) 2.06 2.892(3) 170
C(1)-H(1)···O(1)i 0.93 2.39 3.275(3) 160
C(5)-H(5)···N(2) 0.93 2.54 2.871(3) 101
C(9)-H(9)···O(2) 0.98 2.41 2.857(3) 107
C(23)-H(23)···O(2)ii 0.93 2.54 3.318(3) 142
  1. Symmetry tranformation used: (i) 1/2-x,y,-z; (ii)1/2-x,1/2-y,1/2-z; (iii) -x,1-y,-z; (iv) -x,1-y,1-z; (v) 2-x,-y,1-z; (vi) 1+x,y,z