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Figure 2 View of the crystal structure of NdBO2MoO4 along the b axis, showing chains of corner-sharing [BO3] groups (green), double-chains of face- and edge-sharing [NdO10] polyhedra (purple), and rows of isolated [MoO4] tetrahedra (orange), all of them running along the b axis. In a single row, [MoO4] tetrahedra are arranged with identical orientation, thus giving a polarity +b or -b to the row. Note the alternating polarity of the arrangement of [MoO4] tetrahedra rows along the c axis. |