\chapter*{EXPERIMENTAL DETAILS}
\addcontentsline{toc}{chapter}{EXPERIMENTAL DETAILS}
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This chapter describes the measurement equipment and methods used to characterise researched compounds in this work. 


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\section*{Nenumeruotas skyriaus pavadinimas, nera turiny}
Quantum chemical simulations were used to assess structural and electronic properties of molecules before financially demanding and labour intensive synthesis of compounds were initiated. The calculations were performed by using density functional theory (DFT) as implemented in the Gaussian~09 software package at the B3LYP/6-31G(d) level\cite{g16}. Polarizable Continuum Model (PCM) was used to estimate the solvation behaviour of toluene surrounding in geometry optimization. Tomas Serevičius was the mastermind behind simulations used in this work. 



\begin{figure*}[!b]\centering
	\centering\includegraphics[width=8cm]{figures_PDF/typical_biexp.pdf}
	\caption{An example of typical decay transients of TADF emitter in the absence of ambient oxygen. The dark orange diamonds represent integrated emission from time-resolved spectra at specific time delays. The data can be partitioned into prompt (purple) and delayed (blue) portions which both can be fitted by exponential decay profiles. } \label{fig:typical_biexp}
\end{figure*}

