TY - JOUR
T1 - Conversion from Heterometallic to Homometallic Metal–Organic Frameworks
AU - Song, Jeong Hwa
AU - Lee, Giseong
AU - Yoon, Jung Heum
AU - Jang, Junyeon
AU - Choi, Doosan
AU - Yun, Heejun
AU - Kwon, Kangin
AU - Kim, Hojin
AU - Hong, Chang Seop
AU - Kim, Youngki
AU - Han, Hogyu
AU - Lim, Kwang Soo
AU - Lee, Woo Ram
N1 - Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIP; Ministry of Science and ICT (NRF2017R1C1B5018060). This work was supported by a Korea University Grant. H.H. is grateful for the financial support from the National Research Foundation (NRF) of Korea funded by the Ministry of Science and ICT (NRF2019R1H1A2079948).
Publisher Copyright:
© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2020/9/10
Y1 - 2020/9/10
N2 - Two new heterometallic metal–organic frameworks (MOFs), LnZnTPO 1 and 2, and two homometallic MOFs, LnTPO 3 and 4 (Ln=Eu for 1 and 3, and Tb for 2 and 4; H3TPO=tris(4-carboxyphenyl)phosphine oxide) were synthesized, and their structures and properties were analyzed. They were prepared by solvothermal reaction of the C3-symmetric ligand H3TPO with the corresponding metal ion(s) (a mixture of Ln3+ and Zn2+ for 1 and 2, and Ln3+ alone for 3 and 4). Single-crystal XRD (SXRD) analysis revealed that 1 and 3 are isostructural to 2 and 4, respectively. TGA showed that the framework is thermally stable up to about 400 °C for 1 and 2, and about 450 °C for 3 and 4. PXRD analysis showed their pore-structure distortions without noticeable framework–structure changes during drying processes. The shapes of gas sorption isotherms for 1 and 3 are almost identical to those for 2 and 4, respectively. Solvothermal immersion of 1 and 2 in Tb3+ and Eu3+ solutions resulted in the framework metal-ion exchange affording 4 and 3, respectively, as confirmed by photoluminescence (PL), PXRD, IR, inductively coupled plasma atomic emission spectroscopy (ICP-AES), and energy-dispersive X-ray (EDX) analyses.
AB - Two new heterometallic metal–organic frameworks (MOFs), LnZnTPO 1 and 2, and two homometallic MOFs, LnTPO 3 and 4 (Ln=Eu for 1 and 3, and Tb for 2 and 4; H3TPO=tris(4-carboxyphenyl)phosphine oxide) were synthesized, and their structures and properties were analyzed. They were prepared by solvothermal reaction of the C3-symmetric ligand H3TPO with the corresponding metal ion(s) (a mixture of Ln3+ and Zn2+ for 1 and 2, and Ln3+ alone for 3 and 4). Single-crystal XRD (SXRD) analysis revealed that 1 and 3 are isostructural to 2 and 4, respectively. TGA showed that the framework is thermally stable up to about 400 °C for 1 and 2, and about 450 °C for 3 and 4. PXRD analysis showed their pore-structure distortions without noticeable framework–structure changes during drying processes. The shapes of gas sorption isotherms for 1 and 3 are almost identical to those for 2 and 4, respectively. Solvothermal immersion of 1 and 2 in Tb3+ and Eu3+ solutions resulted in the framework metal-ion exchange affording 4 and 3, respectively, as confirmed by photoluminescence (PL), PXRD, IR, inductively coupled plasma atomic emission spectroscopy (ICP-AES), and energy-dispersive X-ray (EDX) analyses.
KW - conversion
KW - heterometallic complexes
KW - lanthanide metals
KW - metal–organic frameworks
KW - photoluminesence
UR - http://www.scopus.com/inward/record.url?scp=85089781429&partnerID=8YFLogxK
U2 - 10.1002/chem.201904866
DO - 10.1002/chem.201904866
M3 - Article
C2 - 31873958
AN - SCOPUS:85089781429
SN - 0947-6539
VL - 26
SP - 11767
EP - 11775
JO - Chemistry - A European Journal
JF - Chemistry - A European Journal
IS - 51
ER -