View : 621 Download: 0
[{Re(6)Q(8)}(SO3)(6)](10-) (Q = S or Se): Facile Synthesis and Properties of the Most Highly Charged Octahedral Cluster Complexes and High Magnetic Relaxivity of Their Colloids with Gd3+ Ions
- Title
- [{Re(6)Q(8)}(SO3)(6)](10-) (Q = S or Se): Facile Synthesis and Properties of the Most Highly Charged Octahedral Cluster Complexes and High Magnetic Relaxivity of Their Colloids with Gd3+ Ions
- Authors
- Brylev, Konstantin A.; Akhmadeev, Bulat S.; Elistratova, Julia G.; Nizameev, Irek R.; Gubaidullin, Aidar T.; Kholin, Kiri V.; Kashnik, Ilya V.; Kitamura, Noboru; Kim, Sung-Jin; Mironov, Yuri V.; Mustafina, Asiya R.
- Ewha Authors
- 김성진
- SCOPUS Author ID
- 김성진
- Issue Date
- 2019
- Journal Title
- INORGANIC CHEMISTRY
- ISSN
- 0020-1669
1520-510X
- Citation
- INORGANIC CHEMISTRY vol. 58, no. 23, pp. 15889 - 15897
- Publisher
- AMER CHEMICAL SOC
- Indexed
- SCIE; SCOPUS
- Document Type
- Article
- Abstract
- New octahedral rhenium cluster complexes [{Re(6)Q(8)} (SO3)(6)](10-) (Q= S or Se) were synthesized starting from [{Re(6)Q(8)}(H2O)(4)(OH)(2)]center dot 12H(2)O. The complexes were crystallized as sodium salts and characterized by X-ray single-crystal diffraction and elemental analyses, IR, UV/vis and luminescence spectroscopies. Magnetic relaxation data demonstrate the complex formation of the cluster units with gadolinium ions. The analysis of the magnetic relaxation rates measured at various Gd:cluster ratios and different concentrations revealed the conversion of the aggregates (Gd-x[{Re6Se8}(SO3)(6)])(y))(n-) into a nanoparticulate form even at x = 1 and y >= 1. Thus, the self-assembly of the cluster units into the nanoparticles is greatly facilitated by counterion binding with sodium cations. The concentration conditions were optimized for the formation and hydrophilization of NaxGdy[{Re(6)Q(8)}(SO3)(6)]-based colloids with the magnetic relaxivity values of r(1(2)) = 21.0(24.1) and r(1(2)) = 25.9(29.8) mM(-1) s(-1) for the {Re6S8}(2+) and {Re6Se8}(2+) derivatives, respectively.
- DOI
- 10.1021/acs.inorgchem.9b02346
- Appears in Collections:
- 자연과학대학 > 화학·나노과학전공 > Journal papers
- Files in This Item:
There are no files associated with this item.
- Export
- RIS (EndNote)
- XLS (Excel)
- XML