xxx
Array
(
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        (
            [id] => 1235
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            [cn_sort] => 003-004-003-002-
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            [energy] => 1.058
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            [shear_mod] => 145.6
            [vicker_hard] => 18.9
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            [publ_year] => 
            [ref] => 
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            [topology_str] => 3<sup>6</sup>,4<sup>4</sup>T6
            [caid] => 315
            [nn] => 1
            [name] => C60 Polymers R-3
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            [density] => 2.61
            [e_gap] => 0.5
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            [ref_file] => /References/2008_JAmChemSoc_130_4303
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            [density] => 
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            [ref_file] => /References/2010_Dalton_38_1901
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    [3] => Array
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            [in_col] => 10
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            [cn_sort] => 003-004-003-002-
            [topology_str] => 3<sup>6</sup>,4<sup>4</sup>T6
            [caid] => 315
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            [name] => 3D fullerite with tetragonal unit cell
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            [density] => 
            [e_gap] => 
            [energy] => 
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            [shear_mod] => 
            [vicker_hard] => 
            [ref_file] => /References/2010_JSuperhardMat_32_67
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            [ref] => 
        )

)
xxx