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Energy Transport in Dichroic Metallo-organic Crystals: Selective Inclusion of Spatially Resolved Arrays of Donor and Acceptor Dyes in Different Nanochannels** |
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| Authors: | Dr. Qiang Wen Dr. Naveen Malik Dr. Yoseph Addadi Maren Weißenfels Vivek Singh Dr. Linda J. W. Shimon Dr. Michal Lahav Prof. Milko E. van der Boom |
| Affiliation: | 1. Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot, 7610001 Israel;2. Department of Life Science Core Facilities, Weizmann Institute of Science, Rehovot, 7610001 Israel;3. Department of Chemical Research Support, Weizmann Institute of Science, Rehovot, 7610001 Israel |
| Abstract: | In this study, the precise positioning and alignment of arrays of two different guest molecules in a crystalline host matrix has been engineered and resulted in new optically active materials. Sub-nm differences in the diameters of two types of 1D channels are sufficient for size-selective inclusion of dyes. Energy transport occurs between the arrays of different dyes that are included in parallel-positioned nanochannels by Förster resonance energy transfer (FRET). The color of individual micro-sized crystals are dependent on their relative position under polarized light. This angular-dependent behavior is a result of the geometrically constrained orientation of the dyes by the crystallographic packing of the host matrix and is concentration dependent. |
| Keywords: | Dichroic Crystals Förster Resonance Energy Transfer Metal–Organic Frameworks Selective Guest Inclusion |