xxx
Array
(
    [0] => Array
        (
            [id] => 1501
            [topology] => 4<sup>6</sup>T34
            [link_rcsr] => 
            [in_col] => 6
            [transitivity] => [6(13)(13)4]
            [space_group] => P-1
            [pearson] => aP12
            [cn] => 4
            [Year] => 2017
            [cn_sort] => 004-
            [topology_str] => 4<sup>6</sup>T34
            [sp_atoms] => 
            [caid] => 439
            [nn] => 0
            [name] => 
            [pressure] => 
            [density] => 3.360
            [e_gap] => 
            [energy] => 1.143
            [bulk_mod] => 359.0
            [shear_mod] => 386.1
            [vicker_hard] => 71.5
            [ref_file] => 
            [publ_year] => 
            [ref] => 
        )

    [1] => Array
        (
            [id] => 1502
            [topology] => 4<sup>6</sup>T34
            [link_rcsr] => 
            [in_col] => 6
            [transitivity] => [6(13)(13)4]
            [space_group] => P-1
            [pearson] => aP12
            [cn] => 4
            [Year] => 2017
            [cn_sort] => 004-
            [topology_str] => 4<sup>6</sup>T34
            [sp_atoms] => 
            [caid] => 439
            [nn] => 1
            [name] => G142
            [pressure] => 
            [density] => 
            [e_gap] => 
            [energy] => 
            [bulk_mod] => 
            [shear_mod] => 
            [vicker_hard] => 
            [ref_file] => /References/2017_ChemPhysChem_18_873
            [publ_year] => 2017
            [ref] => 
        )

)
xxx