An effect of extra compactified dimensions of space in the molecule $$\hbox {NO}_{{2}}$$

Abstract The theory of large extra compactified dimensions space (ADD-model) predicts that gravity may become strong in a compactification the size molecule and affect vibrational motion molecule. In triatomic molecules like $$\hbox {NO}_{{2}}$$ NO 2 nuclear dynamics is strongly coupled to electronic at intersection states (conical intersection). We discuss experimental results on which reveal collision-free optically excited into symmetric stretch vibration mode an state with conical undergoes irreversible non-radiative transition asymmetric combination change state. suggest ascribing this gravitational perturbation . This deactivates upper optical transition. width absorption line given by characteristic time not radiative lifetime molecular Graphical abstract