Error message

  • Notice: Undefined index: qtip_label in qtip_field_preprocess_field() (line 169 of sites/all/modules/qtip/modules/qtip_field/qtip_field.module).
  • Notice: Undefined index: qtip_label in qtip_field_preprocess_field() (line 169 of sites/all/modules/qtip/modules/qtip_field/qtip_field.module).
  • Notice: Undefined index: qtip_label in qtip_field_preprocess_field() (line 169 of sites/all/modules/qtip/modules/qtip_field/qtip_field.module).

Examples of Symmetry

Use examples to demonstrate symmetry. For example, show 1H and 13C NMR spectra of ethyl benzene.

Topic:

Strategy:

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