Talk:Synthetic molecular motor

Nanoscopic synthetic motors section deleted

The following section including animated gifs was deleted claiming "content duplicate with single molecule electric motor". First of all, the content is not repeated. This is new original data. Second, the alluded entry is very specific in nature and should be merged with molecular machines, as proposed below. Third of all, one does not simply delete content which has taken significant amount of work and is of importance without reallocating it. Fourth and most critical, the deleted content is of highly pedagogic value (one can actually observe molecules). It should be reconsidered by future visitors of this page to revert back to version 13:33, 21 August 2014‎ and to merge synthetic molecular motors with synthetic molecular machines.

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Title section: Nanoscopic observation of molecular rotation A rotor and a stator are the two required components for harnessing rotational motion. A nanoscopic rotor-stator pair can be fabricated by confining propeller-shaped (supra)molecules to a nanopore, serving as an armature with the pertinent diameter. An alternative to circular stators are hexagonal lattices made of molecules, which are widely known in the field of two-dimensional molecular self-assembly and molecular engineering. Using hexagonal nanopores on a silver substrate, real-time molecular rotation can be observed and analyzed at metallic interfaces, aided by scanning tunneling microscopy experiments and molecular dynamics simulations.

• I do not get it, the section "Nanoscopic observation of molecular rotation" has been moved to the bottom of the page. I think it makes sense to place new content not on top of the page. I also doubt if the content is within the scope of this article, does this system display unidirectional motion? I do not favor your suggested move to molecular machine that article is too broad. My guess would by supramolecular rotor as subset of supramolecular chemistry. The section "Experimental demonstration of a single molecule-electric motor" was trimmed because it is duplicate with the dedicated page. V8rik (talk) 16:49, 28 August 2014 (UTC)
  • Proposing again to have "Nanoscopic observation of molecular rotation" section moved away from this article. The system does not describe a motor V8rik (talk) 14:05, 12 June 2016 (UTC)

section removed V8rik (talk) 20:26, 2 October 2016 (UTC)

Molecular dynamics simulation of a synthetic molecular motor composed of three molecules in a nanopore (outer diameter 6.7 nm) at 250 K.

I am trying to understand what is being presented in this image that is in the section under discussion. My question is: what is the driving force that makes the motor spin in one direction? If there is no driving force then the system has to be time-symmetric, and backwards motion should also occur, i.e., this is not a motor but merely an (inevitably) failed Brownian ratchet. --Nanite (talk) 10:56, 1 July 2016 (UTC)

References

Untitled

I changed the paragraph on fluorene motors reported by Feringa et al. The t-Butyl motor is much faster than the methyl one that was there before (and is the fastest one they reported to date). Also, the reason these motors are much faster is not due to less steric hindrance around the central double bond, as in that case the methyl version should be faster. I'm with gerrit 19:04, 20 March 2007 (UTC)

As I'm writing a review on molecular devices in general and synthetic molecular motors in particular, I decided to donate some of my images and text to this Wikipedia article. In the coming days, I will make additional improvements to this article in order to make it more up to date and accurate. Any feedback is welcome. TommyCP 20:08, 15 November 2007 (UTC)

I think that there may be an error in the new Kelly image. The third molecule appears to be missing the teather. M stone 04:42, 16 November 2007 (UTC)

I checked the new Kelly image, comparing it with Kelly's 1999 Nature and 2007 JACS publications, however, I couldn't find anything wrong with it. Please note that in the old image,'a', 'b', 'c', etc. were used to denote the different structures/conformations, whereas in the new image they are used to denote the different processes which are involved in its rotation mechanism. Maybe this got you confused? TommyCP 08:21, 16 November 2007 (UTC)

No wait, I see what you mean. Indeed, the tether is missing. I'll upload a new image shortly. TommyCP 08:33, 16 November 2007 (UTC)

I added two more chemically driven synthetic molecular motors to the article, something which I wanted to do last year (but couldn't find the time for then). The new text might be a bit 'advanced', feel free to rephrase it. TommyCP (talk) 17:02, 20 October 2008 (UTC)

Merge proposal

It seems to me that this article discusses a few particular synthetic molecular motors, while the molecular machine article is more general about the topic. The two particular cases described here in synthetic molecular motors would fit well within the more general article molecular machine. Is there a consensus on this? Please list below whether you support or oppose this merger. --chodges (talk) 19:11, 29 June 2008 (UTC)

I strongly oppose the merger. Synthetic molecular motors are a very specific and active area of research. The topic deserves it's own page. There is an entire category of other individual types of molecule machines.[1] Each one deserves its own page. M stone (talk) 21:17, 29 June 2008 (UTC)

Well I think you missed the point, but it is clear we have no consensus on the proposed merger. --chodges (talk) 23:09, 8 July 2008 (UTC)