xxx
Array
(
    [0] => Array
        (
            [id] => 491
            [topology] => baa
            [link_rcsr] => http://rcsr.net/nets/baa
            [in_col] => 2
            [transitivity] => [2221]
            [space_group] => I-42d
            [pearson] => tI12
            [cn] => 4
            [Year] => 2014
            [cn_sort] => 004-
            [topology_str] => baa
            [caid] => 91
            [nn] => 0
            [name] => 
            [pressure] => 
            [density] => 3.438
            [e_gap] => 
            [energy] => 1.075
            [bulk_mod] => 399.6
            [shear_mod] => 396.2
            [vicker_hard] => 70.8
            [ref_file] => 
            [publ_year] => 
            [ref] => 
        )

    [1] => Array
        (
            [id] => 492
            [topology] => baa
            [link_rcsr] => http://rcsr.net/nets/baa
            [in_col] => 2
            [transitivity] => [2221]
            [space_group] => I-42d
            [pearson] => tI12
            [cn] => 4
            [Year] => 2014
            [cn_sort] => 004-
            [topology_str] => baa
            [caid] => 91
            [nn] => 1
            [name] => iceXII-carbon
            [pressure] => 
            [density] => 3.38
            [e_gap] => 2.01
            [energy] => 
            [bulk_mod] => 373.5
            [shear_mod] => 
            [vicker_hard] => 85.5
            [ref_file] => /References/2014_JPCC_27502_Ice_Carbon
            [publ_year] => 2014
            [ref] => 
        )

)
xxx