xxx
Array
(
    [0] => Array
        (
            [id] => 860
            [topology] => 3<sup>2</sup>,4T206
            [link_rcsr] => 
            [in_col] => 3
            [transitivity] => -
            [space_group] => P3212
            [pearson] => hP18
            [cn] => 3, 4 (2:1)
            [Year] => 2015
            [cn_sort] => 003-004-002-001-
            [topology_str] => 3<sup>2</sup>,4T206
            [caid] => 200
            [nn] => 0
            [name] => 
            [pressure] => 
            [density] => 2.445
            [e_gap] => 
            [energy] => 0.813
            [bulk_mod] => 277.2
            [shear_mod] => 227.2
            [vicker_hard] => 33.2
            [ref_file] => 
            [publ_year] => 
            [ref] => 
        )

    [1] => Array
        (
            [id] => 861
            [topology] => 3<sup>2</sup>,4T206
            [link_rcsr] => 
            [in_col] => 3
            [transitivity] => -
            [space_group] => P3212
            [pearson] => hP18
            [cn] => 3, 4 (2:1)
            [Year] => 2015
            [cn_sort] => 003-004-002-001-
            [topology_str] => 3<sup>2</sup>,4T206
            [caid] => 200
            [nn] => 1
            [name] => Tri-C18
            [pressure] => 0-20
            [density] => 2.494
            [e_gap] => Metal
            [energy] => 
            [bulk_mod] => 276.5
            [shear_mod] => 236.8
            [vicker_hard] => 37.0
            [ref_file] => /References/2015_Carbon_91_518
            [publ_year] => 2015
            [ref] => 
        )

)
xxx