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

XELSEP

  • 1. University of Strathclyde

Description

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

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Additional details

Related works

Is supplement to
Journal article: 10.1021/acs.orglett.7b02834 (DOI)

Domain Specific Metadata

 

Excited States Properties

Property Value
E(S1) SA-CASSCF / eV 5.768
E(S2) SA-CASSCF / eV 5.974
E(T1) SA-CASSCF / eV 3.678
E(T2) SA-CASSCF / eV 3.861
f(S1) SA-CASSCF 0.038426358
f(S2) SA-CASSCF 1.716969264
E(S1) SC-NEVPT2 / eV 4.261
E(S2) SC-NEVPT2 / eV 5.479
E(T1) SC-NEVPT2 / eV 3.493
E(T2) SC-NEVPT2 / eV 4.014
f(S1) SC-NEVPT2 0.036502441
f(S2) SC-NEVPT2 1.224724323

Molecule Identifiers

Property Value
CCDC ID XELSEP
SMILES COc1ccc(cc1)C#Cc1ccccc1C1OC(=O)C(=C1C(=O)OC)OC
InChI InChI=1S/C22H18O6/c1-25-16-12-9-14(10-13-16)8-11-15-6-4-5-7-17(15)19-18(21(23)27-3)20(26-2)22(24)28-19/h4-7,9-10,12-13,19H,1-3H3
Molecular Formula C22 H18 O6
CCDC URL https://www.ccdc.cam.ac.uk/structures/Search?Ccdcid=XELSEP&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*