| Theoretical | 
       
      
        |  
          Bond lengths(Å) | 
       
      
        | O(9)-H(24) | 
        0.971 | 
        N(12)-C(13) | 
        1.365 | 
       
      
        | C(6)-H(23) | 
        1.098 | 
        O(10)-H(11) | 
        1.0 | 
       
      
        | C(3)-H(22) | 
        1.102 | 
        C(5)-O(10) | 
        1.379 | 
       
      
        | C(2)-H(21) | 
        1.104 | 
        C(7)-O(9) | 
        1.349 | 
       
      
        | O(8)-H(11) | 
        1.007 | 
        C(7)-O(8) | 
        1.229 | 
       
      
        | N(12)-C(1) | 
        1.35 | 
        C(4)-C(7) | 
        1.366 | 
       
      
        | C(16)-H(20) | 
        1.1 | 
        C(6)-C(1) | 
        1.346 | 
       
      
        | C(16)-H(19) | 
        1.102 | 
        C(5)-C(6) | 
        1.345 | 
       
      
        | C(15)-H(18) | 
        1.105 | 
        C(4)-C(5) | 
        1.35 | 
       
      
        | N(12)-H(17) | 
        1.01 | 
        C(3)-C(4) | 
        1.339 | 
       
      
        | C(15)-C(16) | 
        1.342 | 
        C(2)-C(3) | 
        1.342 | 
       
      
        | C(13)-C(15) | 
        1.36 | 
        C(1)-C(2) | 
        1.348 | 
       
      
        | C(13)-O(14) | 
        1.206 | 
          | 
          | 
       
      
        | Bond angles (°)  | 
       
      
        | H(20)-C(16)-C(15) | 
        122.966 | 
        O(9)-C(7)-O(8) | 
        119.333 | 
       
      
        | C(15)-C(13)-O(14) | 
        124.552 | 
        O(9)-C(7)-C(4) | 
        125.455 | 
       
      
        | C(15)-C(13)-N(12) | 
        111.542 | 
        O(8)-C(7)-C(4) | 
        115.212 | 
       
      
        | O(14)-C(13)-N(12) | 
        123.905 | 
        C(7)-C(4)-C(5) | 
        114.09 | 
       
      
        | C(1)-N(12)-H(17) | 
        109.793 | 
        C(7)-C(4)-C(3) | 
        124.218 | 
       
      
        | C(1)-N(12)-C(13) | 
        133.388 | 
        N(12)-C(1)-C(6) | 
        126.721 | 
       
      
        | H(17)-N(12)-C(13) | 
        116.819 | 
        N(12)-C(1)-C(2) | 
        115.026 | 
       
      
        |   | 
          | 
          | 
          | 
       
      
        | Torsional    angles (°) | 
       
      
        | C(5)-C(4)-C(7)-O(9) | 
        178.807 | 
          | 
          | 
       
      
        | C(3)-C(4)-C(7)-O(8) | 
        179.382 | 
          | 
          | 
       
      
        |  
          Intermolecular H- bond (Dimer) | 
       
      
        | Bond lengths(Å) | 
          | 
        Bond    angles (°)  | 
          | 
       
      
        | O(9)-H(10) | 
        1.010 | 
        O(26)-H(10)-O(9) | 
        176.73 | 
       
      
        | H(10)-O(26) | 
        1.075 | 
        O(8)-H(28)-O(27) | 
        179.427 | 
       
      
        | O(27)-H(28) | 
        0.991 | 
        O(11)-H(12)-O(8) | 
        164.782 | 
       
      
        | H(28)-O(8) | 
        1.072 | 
        O(29)-H(39)-O(26) | 
        164.113 | 
       
      
        | O(11)-H(12) | 
        0.995 | 
          | 
          | 
       
      
        | H(12)-O(8) | 
        1.061 | 
          | 
          | 
       
      
        | O(29)-H(39) | 
        1.003 | 
          | 
          | 
       
      
        | O(26)-H(39) | 
        1.073 | 
          | 
          | 
       
      |