xxx
Array
(
    [0] => Array
        (
            [id] => 1583
            [topology] => 4<sup>12</sup>T7
            [link_rcsr] => 
            [in_col] => 12
            [transitivity] => [(12)(24)(23)(11)]
            [space_group] => P1
            [pearson] => aP12
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            [cn_sort] => 004-
            [topology_str] => 4<sup>12</sup>T7
            [caid] => 480
            [nn] => 0
            [name] => 
            [pressure] => 
            [density] => 3.254
            [e_gap] => 
            [energy] => 1.481
            [bulk_mod] => 313.1
            [shear_mod] => 310.5
            [vicker_hard] => 55.5
            [ref_file] => 
            [publ_year] => 
            [ref] => 
        )

    [1] => Array
        (
            [id] => 1584
            [topology] => 4<sup>12</sup>T7
            [link_rcsr] => 
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            [transitivity] => [(12)(24)(23)(11)]
            [space_group] => P1
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            [Year] => 2017
            [cn_sort] => 004-
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            [caid] => 480
            [nn] => 1
            [name] => G188
            [pressure] => 
            [density] => 
            [e_gap] => 
            [energy] => 
            [bulk_mod] => 
            [shear_mod] => 
            [vicker_hard] => 
            [ref_file] => /References/2017_ChemPhysChem_18_873
            [publ_year] => 2017
            [ref] => 
        )

)
xxx