xxx
Array
(
    [0] => Array
        (
            [id] => 871
            [topology] => 3<sup>3</sup>,4T79
            [link_rcsr] => 
            [in_col] => 4
            [transitivity] => [4442]
            [space_group] => P42/mmc
            [pearson] => tP14
            [cn] => 3, 4 (6:1)
            [Year] => 2013
            [cn_sort] => 003-004-006-001-
            [topology_str] => 3<sup>3</sup>,4T79
            [caid] => 205
            [nn] => 0
            [name] => 
            [pressure] => 
            [density] => 2.972
            [e_gap] => 
            [energy] => 0.952
            [bulk_mod] => 349.5
            [shear_mod] => 168.4
            [vicker_hard] => 22.3
            [ref_file] => 
            [publ_year] => 
            [ref] => 
        )

    [1] => Array
        (
            [id] => 872
            [topology] => 3<sup>3</sup>,4T79
            [link_rcsr] => 
            [in_col] => 4
            [transitivity] => [4442]
            [space_group] => P42/mmc
            [pearson] => tP14
            [cn] => 3, 4 (6:1)
            [Year] => 2013
            [cn_sort] => 003-004-006-001-
            [topology_str] => 3<sup>3</sup>,4T79
            [caid] => 205
            [nn] => 1
            [name] => T14
            [pressure] => 
            [density] => 2.923
            [e_gap] => 
            [energy] => 
            [bulk_mod] => 349.6
            [shear_mod] => 
            [vicker_hard] => 
            [ref_file] => /References/pnas.201311028SI
            [publ_year] => 
            [ref] => 
        )

)
xxx