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PLAT369 Type_2 Test for long C3 - C3 (Angstrom Difference) XRAY: 1.34
--------------------------------------------------------------------------------

Large deviations from generally accepted values may indicate model problems,
over refinement etc.  Default C3-C3 = 1.34 Ang. (X-Ray) value from
Ladd & Palmer, Structure Determination by Xray Crystallography (1985).
Note:
  - C3-C3 indicates a bond between atoms with 4 with 3 bonds each.
  - Conjugated systems may cause some 'false alarm' messages.
  - A notable exception is the C-C bond in -C(=O)-C(=O)- systems with an
    observed mean value of 1.54 Angstrom.

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xuwei0909

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Alert level C
PLAT369_ALERT_2_C Long   C(sp2)-C(sp2) Bond  C1     -   C6     ...       1.53 Ang.
PLAT369_ALERT_2_C Long   C(sp2)-C(sp2) Bond  C5     -   C9     ...       1.53 Ang.
PLAT369_ALERT_2_C Long   C(sp2)-C(sp2) Bond  C10    -   C15    ...       1.53 Ang.
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xi2004

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xi2004

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