Detection of complementary hydrogen bond complexes in water by electrospray ionization-Fourier-transform ion cyclotron resonance mass spectrometryElectronic supplementary information (ESI) available: ESI-FTICR MS spectrum of the 1/3 aqueous solution. See http://www.rsc.org/suppdata/cc/b2/b207874k/

Complementary base paired complex formation of a thymidine-appended bolaamphiphile with adenosine derivatives was able to be detected with high resolution and high sensitivity in aqueous solutions by electrospray ionization-Fourier-transform ion cyclotron resonance mass (ESI-FTICR MS) spectrometry.