Abstract
We designed and synthesized new organometallic Fe complex for application as IR marker of noble metal nanoparticles. The novel metallocarbonyl succinimide complex possesses a disulfide group, which enables its covalent binding to noble metals. The disulfide metallocarbonyl complex was chemisorbed to gold nanoparticles of different sizes and the properties of the AuNp-metallocarbonyl conjugates were determined on the basis of UV–vis and IR spectroscopy, dynamic light scattering (DLS), transmission electron microscopy (TEM) and inductively-coupled plasma mass spectrometry (ICP-MS). A surface enhanced infrared absorption (SEIRA) effect was observed during IR analysis of the AuNp-metallocarbonyl conjugates by IR transmission spectroscopy.
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