Topology dictionary (topoCIF) version 0.9.6

_topol_node.point_symbol

Name:
_topol_node.point_symbol

Definition:

   
    The (short) point symbol of the node. This lists the number and size of
    the shortest closed chains of connected nodes (circuits) starting from
    any non-equivalent node in the net. For an N-coordinated node there are
    N(N-1)/2 circuits.

Examples:

6^6 Point symbol for a diamond vertex

4^2.6^3.8 Point symbol for a feldspar 4-coordinated vertex

7^5.9 Point symbol for the vertex of 4-c qzd net

4^4.6^6 Point symbol for the vertex of 5-c sqp net

Type: Text

Category:
topol_node

		contents
		indexes
		sample pages
		purchase
		CIF dictionaries

Crystallographic Information Framework

Topology dictionary (topoCIF) version 0.9.6

_topol_node.point_symbol

International Tables for Crystallography

Volume G: Definition and exchange of crystallographic data

Edited by S. R. Hall and B. McMahon

IUCrData