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Query: UMLS:C1862103 (
BDC
)
459
document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)
In this paper, the contact configuration of single molecular junction is controlled through side group, which is explored by electrochemical jump-to-contact
STM
break junction. The conductance values of 2-methoxy-1,3-benzenedicarboxylic acid (2-M-1,3-
BDC
) is around 10
-3.65
G
0
, which is different from that of 5-methoxy-1,3-benzenedicarboxylic acid (5-M-1,3-
BDC
) with 10
-3.20
G
0
. Interestingly, the conductance value of 2-M-1,3-
BDC
is the same as that of 1,3-benzenedicarboxaldehyde (1,3-BDCA), while single molecular junctions of 5-M-1,3-
BDC
and 1,3-benzenedicarboxylic acid (1,3-
BDC
) give out similar conductance value. Since 1,3-BDCA binds to the Cu electrode through one oxygen atom, the dominated contact configuration for 1,3-
BDC
is through two oxygen atoms. The different conductance values between 2-M-1,3-
BDC
and 5-M-1,3-
BDC
can be attributed to the different contact configurations caused by the position of the side group. The current work provides a feasible way to control the contact configuration between the anchoring group and the electrode, which may be useful in designing future molecular electronics.
...
PMID:Controlling Contact Configuration of Carboxylic Acid-Based Molecular Junctions Through Side Group. 3135 Jun 21
