Array
(
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        (
            [id] => 480
            [topology] => ato
            [link_rcsr] => http://rcsr.net/nets/ato
            [in_col] => 1
            [transitivity] => [1463]
            [space_group] => R-3m
            [pearson] => hR36
            [cn] => 4
            [Year] => 1993
            [cn_sort] => 004-
            [topology_str] => ato
            [caid] => 88
            [nn] => 0
            [name] => 36-hexa(3,3)
            [pressure] => 
            [density] => 3.045
            [e_gap] => 
            [energy] => 0.542
            [bulk_mod] => 355.0
            [shear_mod] => 331.5
            [vicker_hard] => 56.7
            [ref_file] => 
            [publ_year] => 
            [ref] => 
        )

    [1] => Array
        (
            [id] => 481
            [topology] => ato
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            [in_col] => 1
            [transitivity] => [1463]
            [space_group] => R-3m
            [pearson] => hR36
            [cn] => 4
            [Year] => 1993
            [cn_sort] => 004-
            [topology_str] => ato
            [caid] => 88
            [nn] => 1
            [name] => tubulane
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            [density] => 
            [e_gap] => 
            [energy] => 
            [bulk_mod] => 
            [shear_mod] => 
            [vicker_hard] => 
            [ref_file] => /References/1993_ChemPhysLett(211)110_tubulanes
            [publ_year] => 1993
            [ref] => 
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    [2] => Array
        (
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            [space_group] => R-3m
            [pearson] => hR36
            [cn] => 4
            [Year] => 1993
            [cn_sort] => 004-
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            [nn] => 2
            [name] => 3D (3,3)-III
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            [density] => 
            [e_gap] => 
            [energy] => 
            [bulk_mod] => 356.04
            [shear_mod] => 345.09
            [vicker_hard] => 85.3
            [ref_file] => /References/2013_ScientificReports_3_1331
            [publ_year] => 2013
            [ref] => 
        )

    [3] => Array
        (
            [id] => 483
            [topology] => ato
            [link_rcsr] => http://rcsr.net/nets/ato
            [in_col] => 1
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            [space_group] => R-3m
            [pearson] => hR36
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            [Year] => 1993
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            [nn] => 3
            [name] => γ-C
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            [density] => 1.56
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            [energy] => 
            [bulk_mod] => 341
            [shear_mod] => 
            [vicker_hard] => 72.4
            [ref_file] => /References/2015_PhysLettA_379_2116
            [publ_year] => 2015
            [ref] => 
        )

)