Photocleavable Porphyrin Derivatives for Quantum Optics

IF 1.5 4区 化学 Q3 CHEMISTRY, MULTIDISCIPLINARY
Olga Rybakova, Josef Reisinger, Philipp Rieser, Philipp Geyer, Stefan Gerlich, Markus Arndt, Amal Kumar, Daniel Häussinger, Marcel Mayor, Valentin Köhler
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引用次数: 0

Abstract

Optical control of molecular beams is intriguing as it promises to become a new tool for mass spectrometry and quantum interferometry, where a single or two photons deterministically remove a tailored tag from a larger molecular structure, e. g., a polypeptide. This cleavage process can change the charge state of the macromolecule, provide reporting signals for both fragments by mass spectrometry and it can selectively remove the fragments from a molecular beam by the momentum recoil generated in the dissociation process. Here, we explore a series of porphyrin derivatives as candidates for photocleavage in the gas phase. They share a large, conjugated core which promises a high absorption cross section for visible light. We present the individualization and beam formation of candidate molecules and study their photo-dissociation under tunable, visible radiation. We observe a significant wavelength shift and broadening in the photocleavage cross section for molecules in the gas phase compared to those in solution and we find that a single photon can suffice to trigger the cleavage process.

用于量子光学的光可切割卟啉衍生物
分子光束的光学控制很有趣,因为它有望成为质谱分析和量子干涉测量的新工具,其中一个或两个光子可以确定地从更大的分子结构中去除定制标签。即多肽。这种裂解过程可以改变大分子的电荷状态,为两个片段提供质谱报告信号,并可以通过解离过程中产生的动量反冲选择性地从分子束中去除片段。在这里,我们探索了一系列卟啉衍生物作为气相光裂解的候选者。它们共用一个大的共轭核心,这保证了可见光的高吸收截面。我们提出了候选分子的个体化和光束形成,并研究了它们在可调可见光下的光解离。我们观察到与溶液中的分子相比,气相分子的光解理截面有明显的波长位移和展宽,我们发现单个光子足以触发解理过程。
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来源期刊
Helvetica Chimica Acta
Helvetica Chimica Acta 化学-化学综合
CiteScore
3.00
自引率
0.00%
发文量
60
审稿时长
2.3 months
期刊介绍: Helvetica Chimica Acta, founded by the Swiss Chemical Society in 1917, is a monthly multidisciplinary journal dedicated to the dissemination of knowledge in all disciplines of chemistry (organic, inorganic, physical, technical, theoretical and analytical chemistry) as well as research at the interface with other sciences, where molecular aspects are key to the findings. Helvetica Chimica Acta is committed to the publication of original, high quality papers at the frontier of scientific research. All contributions will be peer reviewed with the highest possible standards and published within 3 months of receipt, with no restriction on the length of the papers and in full color.
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