data_1010849 _chemical_name_systematic 'Pentakis(lead oxide) dihydrate' _chemical_formula_structural '(Pb O)5 (H2 O)2' _chemical_formula_sum 'H4 O7 Pb5' _publ_section_title ; On Lead Oxides. II. Hydrous, Normal and Active Lead Monoxides ; loop_ _publ_author_name 'Clark, G L' 'Tyler, W P' _journal_name_full 'Journal of the American Chemical Society' _journal_coden_ASTM JACSAT _journal_volume 61 _journal_year 1939 _journal_page_first 58 _journal_page_last 65 _cell_length_a 5.93 _cell_length_b 4.65 _cell_length_c 6.36 _cell_angle_alpha 90 _cell_angle_beta 105.78 _cell_angle_gamma 90 _cell_volume 168.8 _cell_formula_units_Z 1