Bond Breaking Coupled with Translation in Rolling of Covalently Bound Molecules

Keeling, D.; Humphry, M. J.; Fawcett, R. H. J.; Beton, Peter H.; Hobbs, Chris; Kantorovich, Lev

doi:10.1103/physrevlett.94.146104

Cited by 88 publications

(99 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…2,44,68 For the investigations of individual molecules, lateral manipulation can be used to place molecules at different adsorption sites 6,69,70 or molecular motion itself can be studied. 44,[71][72][73] On the other hand, adsorbates can be picked up and dropped with the probe tip, which is referred to as vertical manipulation. 74,75 Vertical manipulation can also be employed for studying the contact of individual molecules with the STM tip.…”

Section: 65mentioning

confidence: 99%

Single-molecule chemistry and physics explored by low-temperature scanning probe microscopy

2011

View full text Add to dashboard Cite

It is well known that scanning probe techniques such as scanning tunnelling microscopy (STM) and atomic force microscopy (AFM) routinely offer atomic scale information on the geometric and the electronic structure of solids. Recent developments in STM and especially in non-contact AFM have allowed imaging and spectroscopy of individual molecules on surfaces with unprecedented spatial resolution, which makes it possible to study chemistry and physics at the single molecule level. In this feature article, we first review the physical concepts underlying image contrast in STM and AFM. We then focus on the key experimental considerations and use selected examples to demonstrate the capabilities of modern day low-temperature scanning probe microscopy in providing chemical insight at the single molecule level.

show abstract

Section: 65mentioning

confidence: 99%

Single-molecule chemistry and physics explored by low-temperature scanning probe microscopy

2011

View full text Add to dashboard Cite

show abstract

“…The behaviour of the fullerene cages upon silicon is therefore intrinsically very important to the feasibility of such systems and has been studied both computationally [1][2][3][4] and experimentally [5][6][7][8][9][10][11]. Experimental studies have also examined the manipulation of the cage upon the surface by a suitable device, most often a scanning tunnelling microscope (STM) tip [12,13].…”

Section: Introductionmentioning

confidence: 99%

“…It is possible to move the molecules both parallel and perpendicular to the dimer rows upon the surface at room temperature although the success rate parallel to the rows is much higher [13]. A combination of experimental work and abinitio studies have explored the details behind the movement of the C 60 across the surface [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Adsorption of C82 on Si(100)

Frangou¹,

Kenny²,

Sanville³

2008

Surface Science

View full text Add to dashboard Cite

The interactions between C 82 molecules and the Si (100) surface have been explored via ab-initio total energy calculations. Configurations which have the cage located within the dimer trench bonded to four dimers (t4) and upon the dimer row bonded to two dimers (r2) have been investigated, as these were found to be most stable for the C 60 molecule. It is found that the interactions between the surface and the C 82 molecule are weaker than for the corresponding configurations for C 60 . The C 82 cage has a far lower symmetry than the C 60 cage and this gives many more unique rotational orientations of C 82 compared with C 60 . We have thus investigated the binding energy when the local area of the C 82 binding to the surface is the same but the cage orientation varies. We show that the binding energy can vary strongly within the configurations investigated. Bader analysis has been used to explain the relative binding energies of the different configurations.

show abstract

“…Many studies [6][7][8][9][10][11][12] have been carried out experimentally which show that the C 60 molecule adsorbs in the dimer trench at room temperature, and is only observed above the dimer row when the system is heated. A study of the larger endohedral La@C 82 molecules suggested that the adsorption of an endohedral molecule is similar to that of a fullerene without the presence of an endohedral atom [13].…”

Section: Introductionmentioning

confidence: 99%

Adsorption of N@C60 on Si(100)

2009

View full text Add to dashboard Cite

The interactions between C 60 molecules and the Si(100) surface, as well as the interactions between the endohedrally doped N@C 60 molecules and the Si(100) surface have been explored via ab initio total energy calculations. Configurations which have the cage located upon the dimer row bonded to two dimers (r2) and within the dimer trench bonded to four dimers (t4) have been investigated, as these have previously been found to be the most stable for the C 60 molecule. We show that our results for the adsorption of the C 60 molecule upon the Si(100) surface are comparable with previous studies. We have investigated the differences between the adsorption of the C 60 and N@C 60 molecules upon the Si(100) surface and found that there are only minimal differences. Two interesting cases are the r2g and t4d configurations, as they both exhibit differences that are not present in the other configurations. These subtle differences have been explored in-depth. It is shown that the effects on the endohedral nitrogen atom, due to its placement within the fullerene cage, are small. Bader analysis has been used to explore differences between the C 60 and N@C 60 molecules.

show abstract

Bond Breaking Coupled with Translation in Rolling of Covalently Bound Molecules

Cited by 88 publications

References 25 publications

Single-molecule chemistry and physics explored by low-temperature scanning probe microscopy

Single-molecule chemistry and physics explored by low-temperature scanning probe microscopy

Adsorption of C82 on Si(100)

Adsorption of N@C60 on Si(100)

Contact Info

Product

Resources

About