Published April 29, 2026 | Version v1.0
Dataset Open

ICAHIE

  • 1. University of Strathclyde

Description

Excited state energies, ORCA output file and optimised ground state geometry of ICAHIE. Full dataset available here: BenchmarkSet1500.csv.

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Additional details

Related works

Is supplement to
Journal article: 10.1002/ejic.200400343 (DOI)

Domain Specific Metadata

 

Excited States Properties

Property Value
E(S1) SA-CASSCF / eV 4.326
E(S2) SA-CASSCF / eV 4.991
E(T1) SA-CASSCF / eV 3.945
E(T2) SA-CASSCF / eV 4.69
f(S1) SA-CASSCF 0.025706887
f(S2) SA-CASSCF 1.9e-08
E(S1) SC-NEVPT2 / eV 3.172
E(S2) SC-NEVPT2 / eV 3.786
E(T1) SC-NEVPT2 / eV 2.982
E(T2) SC-NEVPT2 / eV 3.47
f(S1) SC-NEVPT2 0.018850716
f(S2) SC-NEVPT2 1.4e-08

Molecule Identifiers

Property Value
CCDC ID ICAHIE
SMILES CCN(CC)P1(=S)SP(=S)(S1)N(CC)CC
InChI InChI=1S/C8H20N2P2S4/c1-5-9(6-2)11(13)15-12(14,16-11)10(7-3)8-4/h5-8H2,1-4H3
Molecular Formula C8 H20 N2 P2 S4
CCDC URL https://www.ccdc.cam.ac.uk/structures/Search?Ccdcid=ICAHIE&DatabaseToSearch=Published

Electronic Structure Methodology

Property Value
Electronic structure methodology SA-CASSCF
Correlation method SC-NEVPT2
Active Space 8,8
Basis Set Def2-TZVP
Excited State Software ORCA
Ground state functional B3LYP
Ground state basis set 6-31G*