The B$^2\Pi-$X$^2\Pi$ electronic origin band of $^{13}$C$_6$H

TL;DR

This paper reports the high-resolution spectroscopic analysis of the $^{13}$C$_6$H molecule's electronic transition, providing precise spectroscopic parameters for both ground and excited states.

Contribution

It presents the first detailed rotationally resolved spectrum of $^{13}$C$_6$H's B$^2\Pi-$X$^2\Pi$ transition, with accurate spectroscopic parameters derived from over a hundred resolved lines.

Findings

Accurate spectroscopic parameters for $^{13}$C$_6$H's ground and excited states.

First detailed rotational spectrum of the B$^2\Pi-$X$^2\Pi$ transition for $^{13}$C$_6$H.

Over a hundred resolved spectral lines analyzed.

Abstract

The rotationally resolved spectrum of the B$^2\Pi-$X$^2\Pi$ electronic origin band transition of $^{13}$C$_6$H is presented. The spectrum is recorded using cavity ring-down spectroscopy in combination with supersonic plasma jets by discharging a $^{13}$C$_2$H$_2$/He/Ar gas mixture. A detailed analysis of more than a hundred fully-resolved transitions allows for an accurate determination of the spectroscopic parameters for both the ground and electronically excited state of $^{13}$C$_6$H.