Correction: A robust and porous titanium metal–organic framework for gas adsorption, CO₂ capture and conversion

Abstract

Correction for ‘A robust and porous titanium metal–organic framework for gas adsorption, CO₂ capture and conversion’ by Xuze Pan, et al., Dalton Trans., 2023, 52, 3896–3906, https://doi.org/10.1039/D2DT03158B.

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The authors regret that an article reporting on a similar material was not referenced in the original article. The missing reference is listed below, and the following discussion should have been included in the original paper on page 3897 in the Results and discussion section between the paragraph ending ‘…persistent building block for the controllable synthesis of Ti-MOFs.’ and the paragraph starting ‘Despite interpenetration…’. The figure and reference numbering below apply only to this Correction and not to the original article.

The material described in this publication as LCU-402 was previously published as MUV-12 by Lopez-Maya et al.¹

MUV-12 and LCU-402 are intrinsically identical because of their same framework topology. However, their Ti₂Ca₂ clusters are slightly different (as shown in Fig. 1). In the Ti₂Ca₂ cluster of MUV-12, the coordination number of Ca²⁺ is 7, while in the Ti₂Ca₂ cluster of LCU-402, the coordination number of Ca²⁺ can be viewed as 9, because the two Ca²⁺ ions are further linked by two μ₂-H₂O bridging ligands. This difference in the clusters indicates the coordination flexibility of Ca²⁺. It is known that the coordination number of Ca²⁺ is usually 6–8, but up to 10 is possible.² Furthermore, the structure analysis of the Ti₂Ca₂ cluster in LCU-402, upon removal of the μ₂-H₂O ligands, may reveal a new type of potential open metal site.

Fig. 1 Different synthetic conditions and different Ti₂Ca₂ clusters (in LCU-402, two Ca²⁺ ions are further bridged by two μ₂-H₂O ligands and therefore the coordination number of Ca²⁺ is 9).

This coordination difference of Ca²⁺ in the clusters can be ascribed to the different synthetic conditions (Fig. 1). In our case, we used CaCl₂·(H₂O)₆ instead of anhydrous CaCl₂. It is reasonable that more water in the reaction system could promote more coordination by water molecules.

The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to authors and readers.

References

1. E. López-Maya, N. M. Padial, J. Castells-Gil, C. R. Ganivet, A. Rubio-Gaspar, F. G. Cirujano, N. Almora-Barrios, S. Tatay, S. Navalón and C. Martí-Gastaldo, Angew. Chem., Int. Ed., 2021, 60(21), 11868–11873.
2. A. K. Katz, J. P. Glusker, S. A. Beebe and C. W. Bock, J. Am. Chem. Soc., 1996, 118(24), 5752–5763.

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