A Study on the Spectra Characterization of Ruthenium(Ii) Complexes

Yang, Xin; Wang, Xin; Song, Jin; Chen, Daoyong; Zhang, Jiangrun; Lu, Lude

doi:10.1080/00387010009350088

Cited by 5 publications

(2 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…S3) show a strong absorption band at 224 nm, a shoulder peak at 264 nm, and three relatively weak adsorptions at ∼350, 470, and 570 nm. The bands in the high-energy region (λ = 224 and 264 nm) could be assigned to strong intraligand (IL) π (phen) → π* (phen) and n (phen) → π* (phen) transitions, , whereas the peaks in the low-energy region could be attributed to metal to ligand (dπ (Ru) → π* (phen) and π* (Ru) → n (Cl)) charge transfer ( 1 MLCT and 3 MLCT) transitions.…”

Section: Resultsmentioning

confidence: 99%

“…These chemical shifts, compared with those from [Ru(phen) 3 ] 2+ and phen, are shifted downfield, indicating that the chlorine atoms are coordinated with the Ru(II) center. 21,22 As shown in Figure S2, characteristic IR absorption peaks of phen ligands are observed at 3030 cm −1 for ν C−H and 1562 cm −1 for ν C=N . The latter peak is shifted to a slightly lower wavenumber relative to the 1630 cm −1 peak from phen alone, 23 which is consistent with the coordination of the N atom to Ru(II).…”

Section: ■ Experimental Sectionmentioning

confidence: 97%

See 1 more Smart Citation

Aggregation-Induced Electrochemiluminescence of the Dichlorobis(1,10-phenanthroline)ruthenium(II) (Ru(phen)₂Cl₂)/Tri-n-propylamine (TPrA) System in H₂O–MeCN Mixtures for Identification of Nucleic Acids

Zhang

Miao

et al. 2020

Anal. Chem.

View full text Add to dashboard Cite

Aggregation-induced electrochemiluminescence (AIECL) of the dichlorobis(1,10-phenanthroline)ruthenium(II) (Ru(phen)2Cl2)/tri-n-propylamine (TPrA) system was systematically investigated in H2O–MeCN media. Up to a 120-fold increase in the ECL intensity was observed when the H2O fraction (v%) was changed from 30% to 70%, whereas only an approximately 5.7-fold increase in the corresponding aggregation-induced fluorescence emission was demonstrated. The gradual formation of clusters of Ru(phen)2Cl2 nanoaggregates along with the increase in the H2O fraction to MeCN, which was verified by dynamic light scattering (DLS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM), was believed to be responsible for the remarkable ECL enhancement. Significantly, the above-mentioned AIECL behavior was found to be very sensitive to the types and sequences of nucleic acids present in solution, which provided an effective and novel strategy for distinguishing RNA from DNA and for differentiating different miRNAs. The present study could have a substantial impact in various research areas, such as molecular sensors, bioimaging probes, organelle-specific imaging, and tumor diagnosis.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: ■ Experimental Sectionmentioning

confidence: 97%

Aggregation-Induced Electrochemiluminescence of the Dichlorobis(1,10-phenanthroline)ruthenium(II) (Ru(phen)₂Cl₂)/Tri-n-propylamine (TPrA) System in H₂O–MeCN Mixtures for Identification of Nucleic Acids

Zhang

Miao

et al. 2020

Anal. Chem.

View full text Add to dashboard Cite

show abstract

Aggregation‐Induced Electrochemiluminescence and Nitric Oxide Recognition by Halogen Bonding with a Ruthenium(II) Complex

et al. 2023

View full text Add to dashboard Cite

In this study, a new strategy for NO detection based on the aggregation‐induced electrochemical luminescence (AIECL) of a ruthenium‐based complex and the halogen bonding effect was developed. First, [Ru(phen)2(phen–Br2)]2+ (phen : 1,10‐phenanthroline, phen–Br2 : 3,8‐dibromo‐1,10‐phenanthroline) was synthesized and exhibited aggregation‐induced emission (AIE) and AIECL properties in a poor solvent (H2O). [Ru(phen)2(phen–Br2)]2+ exhibited greatly enhanced AIECL properties compared to its AIE intensity. When the volume fraction of water (fw, v %) in the H2O–acetonitrile (MeCN) system was increased from 30 to 90 %, the photoluminescence and electrochemiluminescence (ECL) intensities were three‐ and 800‐fold that of the pure MeCN system, respectively. Dynamic light scattering and scanning electron microscopy results indicated that [Ru(phen)2(phen‐Br2)]2+ aggregated into nanoparticles. AIECL is sensitive to NO because of its halogen bonding effect. The C−Br⋅⋅⋅N bond between [Ru(phen)2(phen‐Br2)]2+ and NO increased the distance of complex molecules, resulting in ECL quenching. A detection limit of 2 nM was obtained with 5 orders of magnitude linear range. The combination of the AIECL system and the halogen bond effect expands the theoretical research and applications in biomolecular detection, molecular sensors, and stages of medical diagnosis.

show abstract

¹H NMR assignment corrections and ¹H, ¹³C, ¹⁵N NMR coordination shifts structural correlations in Fe(II), Ru(II) and Os(II) cationic complexes with 2,2′‐bipyridine and 1,10‐phenanthroline

Pazderski

Pawlak

Sitkowski

et al. 2010

Magnetic Reson in Chemistry

View full text Add to dashboard Cite

(1)H, (13)C and (15)N NMR studies of iron(II), ruthenium(II) and osmium(II) tris-chelated cationic complexes with 2,2'-bipyridine and 1,10-phenanthroline of the general formula [M(LL)(3)](2+) (M = Fe, Ru, Os; LL = bpy, phen) were performed. Inconsistent literature (1)H signal assignments were corrected. Significant shielding of nitrogen-adjacent protons [H(6) in bpy, H(2) in phen] and metal-bonded nitrogens was observed, being enhanced in the series Ru(II) --> Os(II) --> Fe(II) for (1)H, Fe(II) --> Ru(II) --> Os(II) for (15)N and bpy --> phen for both nuclei. The carbons are deshielded, the effect increasing in the order Ru(II) --> Os(II) --> Fe(II).

show abstract

A Study on the Spectra Characterization of Ruthenium(Ii) Complexes

Cited by 5 publications

References 9 publications

Aggregation-Induced Electrochemiluminescence of the Dichlorobis(1,10-phenanthroline)ruthenium(II) (Ru(phen)₂Cl₂)/Tri-n-propylamine (TPrA) System in H₂O–MeCN Mixtures for Identification of Nucleic Acids

Aggregation-Induced Electrochemiluminescence of the Dichlorobis(1,10-phenanthroline)ruthenium(II) (Ru(phen)₂Cl₂)/Tri-n-propylamine (TPrA) System in H₂O–MeCN Mixtures for Identification of Nucleic Acids

Aggregation‐Induced Electrochemiluminescence and Nitric Oxide Recognition by Halogen Bonding with a Ruthenium(II) Complex

¹H NMR assignment corrections and ¹H, ¹³C, ¹⁵N NMR coordination shifts structural correlations in Fe(II), Ru(II) and Os(II) cationic complexes with 2,2′‐bipyridine and 1,10‐phenanthroline

Contact Info

Product

Resources

About

A Study on the Spectra Characterization of Ruthenium(Ii) Complexes

Cited by 5 publications

References 9 publications

Aggregation-Induced Electrochemiluminescence of the Dichlorobis(1,10-phenanthroline)ruthenium(II) (Ru(phen)2Cl2)/Tri-n-propylamine (TPrA) System in H2O–MeCN Mixtures for Identification of Nucleic Acids

Aggregation-Induced Electrochemiluminescence of the Dichlorobis(1,10-phenanthroline)ruthenium(II) (Ru(phen)2Cl2)/Tri-n-propylamine (TPrA) System in H2O–MeCN Mixtures for Identification of Nucleic Acids

Aggregation‐Induced Electrochemiluminescence and Nitric Oxide Recognition by Halogen Bonding with a Ruthenium(II) Complex

1H NMR assignment corrections and 1H, 13C, 15N NMR coordination shifts structural correlations in Fe(II), Ru(II) and Os(II) cationic complexes with 2,2′‐bipyridine and 1,10‐phenanthroline

Contact Info

Product

Resources

About

Aggregation-Induced Electrochemiluminescence of the Dichlorobis(1,10-phenanthroline)ruthenium(II) (Ru(phen)₂Cl₂)/Tri-n-propylamine (TPrA) System in H₂O–MeCN Mixtures for Identification of Nucleic Acids

Aggregation-Induced Electrochemiluminescence of the Dichlorobis(1,10-phenanthroline)ruthenium(II) (Ru(phen)₂Cl₂)/Tri-n-propylamine (TPrA) System in H₂O–MeCN Mixtures for Identification of Nucleic Acids

¹H NMR assignment corrections and ¹H, ¹³C, ¹⁵N NMR coordination shifts structural correlations in Fe(II), Ru(II) and Os(II) cationic complexes with 2,2′‐bipyridine and 1,10‐phenanthroline