 | Acta Crystallographica Section E Acta Crystallographica Section E CRYSTALLOGRAPHIC COMMUNICATIONS |
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![[Figure 2]](wm5786fig2mag.jpg)
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Figure 2
(a) The channel structure of Rb9Na2Cu6(P2O7)4Cl7 in a view along [001], with the Cu–P–O framework outlined by CuO4 and P2O7 units. The channels are formed by eight (8-ring) or sixteen (16-ring) alternating cations of Cu and P. To indicate the apparent disorder of some atoms (Na, Rb, and Cl), their arrangement is highlighted in two of the large channels. (b) Projection of one large and small channel onto (001), with some Cl and all Rb and Na sites are omitted for clarity. Cl atoms occupy the apical position of the Cu2+-centered square-pyramidal CuO4Cl units (ball-and-stick drawing), with Cu—O bonds as solid lines and Cu—Cl bonds in dotted lines. The polyhedral units represent PO4 tetrahedra. |
![[Figure 2]](wm5786fig2.jpg)
| CRYSTALLOGRAPHIC COMMUNICATIONS |
ISSN: 2056-9890
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