Array
(
    [0] => Array
        (
            [id] => 2990
            [topology] => cha
            [link_rcsr] => 
            [in_col] => 1
            [transitivity] => [1442]
            [space_group] => R-3m
            [pearson] => hR36
            [cn] => 4
            [Year] => 2021
            [cn_sort] => 004-
            [topology_str] => cha
            [sp_atoms] => 
            [caid] => 1176
            [nn] => 0
            [name] => 
            [pressure] => 
            [density] => 2.477
            [e_gap] => 
            [energy] => 0.787
            [bulk_mod] => 265.2
            [shear_mod] => 184.1
            [vicker_hard] => 21.4
            [ref_file] => 
            [publ_year] => 
            [ref] => 
        )

    [1] => Array
        (
            [id] => 2991
            [topology] => cha
            [link_rcsr] => 
            [in_col] => 1
            [transitivity] => [1442]
            [space_group] => R-3m
            [pearson] => hR36
            [cn] => 4
            [Year] => 2021
            [cn_sort] => 004-
            [topology_str] => cha
            [sp_atoms] => 
            [caid] => 1176
            [nn] => 1
            [name] => cha
            [pressure] => 
            [density] => 
            [e_gap] => 
            [energy] => 
            [bulk_mod] => 
            [shear_mod] => 
            [vicker_hard] => 
            [ref_file] => /References/2021_npjComputMater_7_15
            [publ_year] => 2021
            [ref] => doi:&nbsp;<a href="http://doi.org/10.1038/s41524-021-00491-y" target="_blank">10.1038/s41524-021-00491-y</a>
        )

)