Abstract; Kurzzusammenfassung; Zusammenfassung; Contents; List of Tables; List of Figures; Preface; 1 Introduction; 2 Theoretical considerations; 3 Synthesis of 1-oxatrisulfane; 4 Experimental setup; 5 Rotational spectrum of 1-oxatrisulfane; 6 Conclusion and Discussion; 7 Introduction; 8 Theoretical considerations; 9 Experimental setup; 10 Rotational spectra of singly and doubly 13C-substituted dimethyl ether; 11 Results and Prospects; A Line lists of HSSOH; B Useful Tables; C Torsional splitting of energy states andtransitions; D Line lists of 13C-dimethyl ether; Bibliography; Danksagung
