381:
511:, enhancing their mechanical and/or conducting properties. The enhancement of these properties relies on uniform dispersion of the wires into the host polymer. MoSI wires have been made in such composites, relying on their superior solubility within the polymer host compared to other nanowires or nanotubes. Bundles of wires can be used to enhance tribological properties of polymers, with applications in actuators and potentiometers. It has been recently proposed that twisted nanowires could work as electromechanical nanodevices (or
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252:
483:(CNTs) are conducting, and connectivity at their ends can be achieved by attachment of connecting groups. Unfortunately manufacturing CNTs with pre-determined properties is impossible at present, and the functionalized ends are typically not conducting, limiting their usefulness as molecular connectors. Individual CNTs can be soldered in an electron microscope, but the contact is not covalent and cannot be self-assembled.
444:
472:(for connections to outside world), biomolecules (for nanosensors, nanoelectrodes, molecular switches) and most importantly, they must allow branching. The connectors should also be available of pre-determined diameter and length. They should also have covalent bonding to ensure reproducible transport and contact properties.
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To be of use for connecting molecules, MWs need to self-assemble following well-defined routes and form reliable electrical contacts between them. To reproducibly self-assemble a complex circuit based on single molecules. Ideally, they would connect to diverse materials, such as gold metal surfaces
276:
Molecular wires conduct electricity. They typically have non-linear current-voltage characteristics, and do not behave as simple ohmic conductors. The conductance follows typical power law behavior as a function of temperature or electric field, whichever is the greater, arising from their strong
200:(or sometimes called molecular nanowires) are molecular chains that conduct electric current. They are the proposed building blocks for molecular electronic devices. Their typical diameters are less than three nanometers, while their lengths may be macroscopic, extending to centimeters or more.
475:
DNA-like molecules have specific molecular-scale recognition and can be used in molecular scaffold fabrication. Complex shapes have been demonstrated, but unfortunately metal coated DNA which is electrically conducting is too thick to connect to individual molecules. Thinner coated DNA lacks
337:
groups. Transition metal-mediated cross-coupling reactions are used to connect simple building blocks together in a convergent fashion to build organic molecular wires. For example, a simple oligo (phenylene ethylnylene) type molecular wire (B) was synthesized starting from readily available
372:
and pyridine-derived polymers can form electronically conductive polyazaacetylene chains under simple ultraviolet irradiation, and that the common observation of "browning" of aged pyridine samples is due in part to the formation of molecular wires. The gels exhibited a transition between
498:
MWs have been demonstrated, either via gold nanoparticles as linkers, or by direct connection to thiolated molecules. The two approaches may lead to different possible applications. The use of GNPs offers the possibility of branching and construction of larger circuits.
562:
Vrbani, Daniel; Rem Kar, Maja; Jesih, Adolf; Mrzel, Ale; Umek, Polona; Ponikvar, Maja; Jan Ar, Bo Tjan; Meden, Anton; Novosel, Barbara; Pejovnik, Stane; Venturini, Peter; Coleman, J C; Mihailovi, Dragan (2004). "Air-stable monodispersed
277:
one-dimensional character. Numerous theoretical ideas have been used in an attempt to understand the conductivity of one-dimensional systems, where strong interactions between electrons lead to departures from normal metallic (
346:
535:
Tarascon, J.M.; Hull, G.W.; Disalvo, F.J. (1984). "A facile synthesis of pseudo one-monodimensional ternary molybdenum chalcogenides M2Mo6X6 (X = Se,Te; M = Li,Na..Cs)".
317:(e.g. organic molecular wires and inorganic molecular wires). The basic principle is to assemble repeating modules. Organic molecular wires are usually synthesized via
963:
Hua, Shao-An; Liu, Isiah Po-Chun; Hasanov, Hasan; Huang, Gin-Chen; Ismayilov, Rayyat Huseyn; Chiu, Chien-Lan; Yeh, Chen-Yu; Lee, Gene-Hsiang; Peng, Shie-Ming (2010).
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Cattena, C. J.; Bustos-Marun, R. A.; Pastawski, H. M. (2010). "Crucial role of decoherence for electronic transport in molecular wires: Polyaniline as a case study".
672:
Yin, Xi; Warren, Steven A.; Pan, Yung-Tin; Tsao, Kai-Chieh; Gray, Danielle L.; Bertke, Jeffery; Yang, Hong (2014). "A Motif for
Infinite Metal Atom Wires".
965:"Probing the electronic communication of linear heptanickel and nonanickel string complexes by utilizing two redox-active [Ni2(napy)4]3+ moieties"
394:
184:
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Mihailovic, D. (2009). "Inorganic molecular wires: Physical and functional properties of transition metal chalco-halide polymers".
380:
1061:
847:
645:
D. Mihailovic (2009). "Inorganic molecular wires: Physical and functional properties of transition metal chalco-halide polymers".
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Perrin, C. & Sergent, M. (1983). "A new family of monodimensional compounds with octahedral molybdenum clusters: Mo6X8Y2".
810:
1005:
Garcia, J. C.; Justo, J. F. (2014). "Twisted ultrathin silicon nanowires: A possible torsion electromechanical nanodevice".
110:
361:. Carbon nanotubes can be synthesized via various nano-technological approaches. DNA can be prepared by either step-wise
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871:"Light-Induced Reactions within Poly(4-vinyl pyridine)/Pyridine Gels: The 1,6-Polyazaacetylene Oligomers Formation"
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atoms directly bonded to each other. Molecular wires containing paramagnetic inorganic moieties can exhibit
208:
Most types of molecular wires are derived from organic molecules. One naturally occurring molecular wire is
42:
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237:
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Tour, J. M.; et al. (2001). "Synthesis and
Preliminary Testing of Molecular Wires and Devices".
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Vaganova, E; Eliaz, D; Shimanovich, U; Leitus, G; Aqad, E; Lokshin, V; Khodorkovsky, V (2021).
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electronic connectivity and is unsuited for connecting molecular electronics components.
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have also been found to be important in determining the properties of molecular wires.
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molecular wire. Mo atoms are blue, iodine atoms are red and sulphur atoms are yellow.
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1-bromo-4-iodobenzene (A). The final product was obtained through several steps of
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Formation of polyazaacetylenes from poly-(4-vinyl)pyridine under ultraviolet light
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797:. Topics in Current Chemistry. Vol. 257. Berlin: Springer. pp. 33–62.
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Possible routes for the construction of larger functional circuits using Mo
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clusters, which are joined together by flexible sulfur or iodine bridges.
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10.1002/1521-3765(20011203)7:23<5118::aid-chem5118>3.0.co;2-1
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on solid-phase or by DNA-polymerase-catalyzed replication inside cells.
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Cotton, F. Albert; Murillo, Carlos A. & Walton, Richard A. (2005).
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One class of inorganic molecular wires consist of subunits related to
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212:. Prominent inorganic examples include polymeric materials such as Li
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Methods have been developed for the synthesis of diverse types of
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Chains can also be produced from metallo-organic precursors.
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293:. Effects caused by classical Coulomb repulsion (called
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281:) behavior. Important concepts are those introduced by
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James, D. K.; Tour, J. M. (2005). "Molecular Wires".
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16:Electrically conductive molecular chains
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353:Other organic molecular wires include
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111:List of semiconductor scale examples
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951:Multiple Bonds Between Metal Atoms
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240:(EMACs) which comprise strings of
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715:(3 ed.). Springer. pp.
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451:approach to molecular wires are
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106:Semiconductor device fabrication
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368:It was recently shown that
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62:Solid-state nanoelectronics
43:Molecular scale electronics
34:Single-molecule electronics
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772:10.1103/PhysRevB.82.144201
597:10.1088/0957-4484/15/5/039
453:extended metal atom chains
238:extended metal atom chains
888:10.3390/molecules26226925
425:, the repeat units are Mo
389:Inorganic molecular wires
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1062:Molybdenum sulfide MSDS
325:Organic molecular wires
272:Conduction of electrons
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161:Electronics portal
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397:. The synthesis of Mo
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447:Illustrative of the
340:Sonogashira coupling
48:Molecular logic gate
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972:Dalton Transactions
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