TDM	Transition density matrix
FTDM	Fraction of transition density matrix
CT	Charge transfer
MO	Molecular orbital
AO	Atomic orbital
NTO	Natural transition orbital
DFT	Density functional theory
TD-DFT	Time-dependent density functional theory
ADC(2)	Algebraic diagrammatic construction through second order
CC2	The second-order approximate coupled cluster singles and doubles model
CIS	Configuration interaction singles
HOMO	Highest occupied molecular orbital
LUMO	Lowest unoccupied molecular orbital
SI	Supporting Information