data_2000606 _journal_name_full 'Acta Cryst.' _journal_year 1992 _journal_volume C48 _journal_page_first 1650 _journal_page_last 1652 loop_ _publ_author_name 'Gali, S.' 'Cardenas, A.' 'Byrappa, K.' 'Gopalakrishna, G.S.' _chemical_formula_sum 'Al1 H3 Na2 O14 P4' _chemical_formula_weight 423.9 _symmetry_cell_setting triclinic _symmetry_space_group_name_H-M 'P -1' _symmetry_space_group_name_Hall '-P 1' _cell_length_a 8.311(4) _cell_length_b 7.363(4) _cell_length_c 4.902(3) _cell_angle_alpha 99.67(2) _cell_angle_beta 81.77(2) _cell_angle_gamma 114.480(10) _cell_volume 268.2(4) _cell_formula_units_Z 1 _exptl_crystal_density_diffrn 2.624 _exptl_crystal_density_meas ? _exptl_crystal_F_000 210 _exptl_absorpt_coefficient_mu 0.931 _diffrn_radiation_type Mo _diffrn_radiation_wavelength 0.7107 loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Al .0 .0 .0 P(1) .26170(10) .08010(10) .4524(2) P(2) .23000(10) .42590(10) .2839(2) O(1) .2114(3) .0409(4) -.2513(5) O(2) .0810(3) .2728(4) .1229(5) O(3) .1182(3) -.0443(4) .2598(5) O(4) .3090(3) .3123(4) .4389(6) O(5) .4325(3) .0503(4) .3419(5) O(6) .3834(4) .5614(4) .1068(6) O(7) .1637(4) .5558(4) .5045(6) Na .2850(2) .7788(3) -.0913(3)