| | 
 |  | Systems | Sites | z (Å) | Theoretical Results
 z (Å)
 | E (eV) | Experimental Results
 (eV)
 | Theoretical Results
 (eV)
 |  | 
 |  | H – Pt(100) | T | 1.55 | 1.64 [14] | -2.283 |  | 1.880 [14] |  | H | 0.55 | 0.70 [14] | -2.832 | -2.565 [7] | -2.340 [14], -2.28 [28] |  | B | 1.15 | 1.76 [12], 1.07 [14] | -2.524 |  | -2.91 [12], -2.31 [14] |  | 
 |  | H – Pt(110) | T | 1.6 | 1.62 [14] | -2.178 |  | -1.69 [14] |  | H | 0.4 | 0.39 [14] | -2.734 |  | -2.28 [14] |  | SB | 1 | 1.03 [14] | -2.385 |  | -2.22 [14] |  | LB | 0.2 | 0.10 [14] | -2.837 |  | -2.33 [14] |  | 
 |  | H – Pt(111) | T | 1.6 | 1.57 [13], 1.64 [14], 1.58 [25], 1.53 [26] | −2.312 | -2.78 [5] | -2.75 [13], -2.61 [13], -2.00 [14], -2.65 [25], -2.76 [26], |  | fcc-H | 1.0 | 1.87 [12], 0.98 [25], 0.91 [26] | −2.647 | -2.456 [7], -2.643 [7], -2.63 [7] | -2.72 [12], -2.74 [13], -2.57 [13], -2.55 [14], -2.55 [19], -2.64 [22], -2.58 [25], -2.49 [26] |  | hcp-H | 1.0 | 0.90 [26] | −2.641 |  | -2.71 [13], -2.55 [13], -2.562 [14], -2.66 [26] |  | B | 1.2 | 1.13 [25], 1.05 [26] | −2.590 |  | -2.476 [14], -2.58 [25], -2.68 [26], |  | 
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