Vapochromism in Organometallic and Coordination Complexes: Chemical Sensors for Volatile Organic Compounds

Abstract

Metalloporphyrins 4.2 Vapochromism as a result of indirect analyte-metal interactions 4.2.1 Vapochromism as a consequence of a change in spin state 4.2.2 Hydrogen-bonded proton transfer assemblies 4.2.3 Metallophilic, π-π, and donor-acceptor interactions 4.2.4 Vapochromism in coordination polymers and metal-organic frameworks 4.2.5 Vapochromism in cyanometallates

Supramolecular Phosphorescent Trinuclear Copper(I) Pyrazolate Complexes for Vapochromic Chemosensors of Ethanol

“…Therefore, these phenomena suggest that the molecular structure of chemosensors with a short alkyl side chain at the pyrazole ring of the complexes gave significant effect on the sensing capability with quenching phenomena toward the ethanol vapors. Since molecular size of ethanol is not large enough to cut-off the metal-metal interaction among pyrazolate molecules, such changes in emission spectra [3][4][5][12][13][14][15][16][17][18][19][20] and colors [4,12,35] in quenching phenomenon might be caused by the formation of a weak intermolecular hydrogen bonding interaction [4,13,[18][19][20][25][26][27]35] from OH of ethanol vapors with electronegative N and/or F atoms at the pyrazole ring so that the metal-metal interaction was totally disrupted and cannot form a bonding between the molecules. In the presence of bulky side chains from -CH 3 , the sensing capability will be reduced due to the influence of accessibility of ethanol vapors from that bulky group to be diffused to the emission center.…”

“…In 1998, Maan and co-workers have successfully synthesized PtPt double-complex salt for vapochromic sensors of organic vapors with color, absorption and emission changes [17]. In Group 11, gold complexes or bimetallic gold-silver complexes with various types of ligands have been also reported as chemosensors [18]. Although copper complexes can be synthesized using less expensive precursors and showed a strong luminescent intensity and longer lifetime, they have received less attention as chemosensors so far [19].…”

Cation‐ and Solvent‐Induced Supramolecular Aggregation Studies of Crown Ether‐Containing Dinuclear Alkynylgold(I) Isocyanide Complexes

“…[24] It is believed that the microenvironment sensitivity of the metal-metal interaction could be exploited for the design of chemosensors of important substrates of interest. [25,26] Given the unique character of aurophilic interactions, it would be interesting to develop new kinds of gold(I) complexbased luminescence probes by utilization of these unique aurophilic interactions. In this work, luminescent gold(I) complexes have been designed and explored for their potential use in the detection of metal ions.…”

Triphenylphosphine-(<em>N</em>,<em>N</em>-dimethyldithiocarbamato)-gold(I) Methanol Solvate

“…as luminescent sensors [1,2]. Dithiocarbamate (dtc) complexes are attractive due to their simple structures and wide variation of luminescence properties [3][4][5].…”