xxx
Array
(
    [0] => Array
        (
            [id] => 1354
            [topology] => 4<sup>3</sup>T170
            [link_rcsr] => 
            [in_col] => 3
            [transitivity] => [3664]
            [space_group] => Imma
            [pearson] => oI20
            [cn] => 4
            [Year] => 2017
            [cn_sort] => 004-
            [topology_str] => 4<sup>3</sup>T170
            [caid] => 366
            [nn] => 0
            [name] => 
            [pressure] => 
            [density] => 3.344
            [e_gap] => 
            [energy] => 0.794
            [bulk_mod] => 382.9
            [shear_mod] => 432.1
            [vicker_hard] => 81.1
            [ref_file] => 
            [publ_year] => 
            [ref] => 
        )

    [1] => Array
        (
            [id] => 1355
            [topology] => 4<sup>3</sup>T170
            [link_rcsr] => 
            [in_col] => 3
            [transitivity] => [3664]
            [space_group] => Imma
            [pearson] => oI20
            [cn] => 4
            [Year] => 2017
            [cn_sort] => 004-
            [topology_str] => 4<sup>3</sup>T170
            [caid] => 366
            [nn] => 1
            [name] => G22
            [pressure] => 
            [density] => 
            [e_gap] => 
            [energy] => 
            [bulk_mod] => 
            [shear_mod] => 
            [vicker_hard] => 
            [ref_file] => /References/2017_ChemPhysChem_18_873
            [publ_year] => 2017
            [ref] => 
        )

)
xxx