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Multifunctional Quaternary Phosphorus/Bromoargentate Hybrids: The Achievement of Greenish Blue Luminescence, Repeatable Photocurrent Responses and Durable Antimicrobial Activities with Enhanced Water Stability

Authors Liu JB, Zhang QJ, Liu JZ, Zhang WT, Li Y, Li HH, Chen ZR, Zheng DL

Received 23 April 2020

Accepted for publication 15 July 2020

Published 19 August 2020 Volume 2020:15 Pages 6225—6237


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Dr Linlin Sun

Jing-Bo Liu,1 Qiao-Jun Zhang,2 Jian-Zhi Liu,1 Wen-Ting Zhang,3 Yi Li,3 Hao-Hong Li,3 Zhi-Rong Chen,3 Da-Li Zheng2

1Department of Otorhinolaryngology, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, People’s Republic of China; 2Fujian Key Laboratory of Oral Diseases, Fujian Biological Materials Engineering and Technology Center of Stomatology, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian 350004, People’s Republic of China; 3College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, People’s Republic of China

Correspondence: Da-Li Zheng
Fujian Key Laboratory of Oral Diseases, Fujian Biological Materials Engineering and Technology Center of Stomatology, School and Hospital of Stomatology, Fujian Medical University, 88 Jiaotong Road, Fuzhou 350004, People’s Republic of China
Tel +86-591-83720599
Jian-Zhi Liu
Department of Otorhinolaryngology, Fujian Medical University Union Hospital, 29 Xinquan Road, Fuzhou 350001, People’s Republic of China
Tel +86-591- 83357896

Background: The realization of multifunction in one bulk material is fascinating for developing a new generation of devices. Quaternary phosphorus salts were seldom utilized as templates in haloargentate systems, and the hybridization of alkyl(triphenyl)phosphonium with halometallate will be a good strategy for the development of multifunctional material, especially for biological material.
Methods: Under the template of (triphenyl)phosphonium-based quaternary phosphorus salts with different spacer lengths (n=2, 3, 4), three bromoargentate hybrids were constructed via the solution method, ie, (1,2-DBTPP)(Ag2Br4) ( 1), {(1,3-DBTPP)2(Ag7Br11)]∙CH3CN∙H2O}n ( 2), and {[(1,4-DBTPP)(Ag5Br7)](CH3CN)2∙H2O}n ( 3) (1,2-DBTPP2+=ethane-1,2-diylbis (triphenyl)phosphonium, 1,3-DBTPP2+=propane-1,3-diylbis (triphenyl)phosphonium, 1,4-DBTPP2+=butane-1,4-diylbis (triphenyl)phosphonium)).
Results: The (Ag7Br11)n4n- chain in 2 is a new type of 1-D bromoargentate chain constructed from cubane-like Ag4Br4 nodes, AgBr4 tetrahedrons and AgBr3 triangles. Interestingly, by elongating spacer n from 2 to 4, argentophilicity interactions are weakened, and the hydrogen bonds are strengthened. Consequently, their water stabilities and photocurrents are improved, in which the Ag-4d/Br-4p to π* anti-bonding orbital of the quaternary phosphorus transfer is facilitated. Furthermore, the greenish blue emissions can be detected. Finally, high inhabitation rates against Streptococcus mutans and Candida albicans can be observed in 2 and 3.
Conclusion: In all experiments, by elongating the spacer lengths of quaternary phosphorus salts, multifunctions were integrated in the quaternary phosphorus/bromoargentate hybrids, including greenish blue luminescence, repeatable photocurrent responses and durable antimicrobial activities with enhanced water stability. This work could provide a theoretical guide for the design of new biologically multifunctional materials.

Keywords: quaternary phosphorus, bromoargentates, nanoparticles, luminescence, antimicrobial

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