Dear Editors and Reviewers:

Thank you for your letter and concerning our manuscript entitled “A new one-dimensional CdII coordination polymer constructed from 4-dimethylaminopyridinioacetate ligands and thiocyanate coordination bridges”. The main corrections in the paper and the responds to the reviewer’s comments are as flowing:

Responds to the reviewer’s comments:

1. Generally, two-dimensional coordination polymer means the sheet-type (grid-like) coordination network. The polymer with Cd1 atoms in this paper, thus, is not two-dimensional but one-dimensional coordination polymer.

Response: Thanks for yours comments, we have corrected these mistakes: title of the paper was corrected “A new one-dimensional CdII coordination polymer constructed from 4-dimethylaminopyridinioacetate ligands and thiocyanate coordination bridges”. The relevant corrections were shown in the paper.

2. L.32: twodimensional

Response: We have made correction according to the Reviewer’s comments: “twodimensional” was replaced by “two-dimensional”.

3. L.47: Uiso, Ueq. Use subscript notation. "U" should be italic.

Response: Considering the Reviewer’s suggestion, we have made correction: “Uiso (H) = 1.2Ueq(C) or 1.5Ueq(C) otherwise” was replaced “Uiso (H) = 1.2Ueq(C) or 1.5Ueq(C) otherwise”.

4. L.49: P2(1)/c,"P" should be italic. 2(1) should be 21 whose 1 is written by subscript notation.

Response: We have made correction according to the Reviewer’s comments: "P" was used italic "P", and 21 whose 1 was written by subscript notation.

5. L.49: independent unit. Use "asymmetric unit"

Response: Considering the Reviewer’s suggestion, we have made correction: “asymmetric unit” was used in this paper.

6. L.49-51: The independent ... counter-ion (Figure 1).

The meanings of this sentence does not match the Figure 1.

The asymmetric unit should be indicated in the Figure 1.

Response: Considering the Reviewer’s suggestion, we have made correction: “The asymmetric unit in salt (I) is composed of two independent CdII atoms, five anionic thiocyanate (SCN) ligands and two 1-carboxymethyl-4-dimethylamino-pyridinium ligands (Fig.1).” (L.49-51). The asymmetric unit have be indicated in the Figure 1.

7. L.55: small bite angles of ... Include value of the angle in the text (i.e., O1-Cd1-O2 = 53.04(16) deg.).

Response: Thanks for yours comments, we have made corrections: “the small bite angles [O1-Cd1-O2=53.04(16) ˚] of the bidentate carboxylate groups (Table 2)”.

8. L.61: 159.76(13)

This value cannot be found in the Table 1.

Furthermore, this bond angle "O2-Cd1-S1" is not cis but trans conformation.

Response: We have made correction according to the Reviewer’s comments: “namely orthogonal cis-angles [53.04(16)–143.7(2)°] and linear trans-angles [159.76(13) –175.42(17)°]”, and the value 159.76(13) ° was added in the Table 1.

9. L.72-73: an interplanar spacing (between A and A rings) of 3.5510(15)

A... (Fig. 2).

Write the definition of the plane.

How did you calculate the plane?

Response: Because the Cd(SCN)2Cd rings almost lie in a plane, they were defined as A and B rings, respectively. A and A rings were parallel to each other, the distance was measured by a atom located in the A ring to the A rings. The same to a dihedral angle (between A and B rings) of 76.70(4) ˚.

10. L.73: 76.701(37)

==> 76.70(4)

see, section 2.15, Note for authors

(http://journals.iucr.org/c/issues/2012/01/00/me0460/index.html)

Response: Thanks for yours comments, we have carefully read the content and have made corrections.

11. L.75: infinite two-dimensional...

This is not two dimensional.

Response: We have made correction according to the Reviewer’s comments: “infinite one-dimensional”.

12. L.80: 173.517°

The standard uncertainty (s.u.) should be expressed as a number in parentheses.

see, section 2.15, Note for authors

(http://journals.iucr.org/c/issues/2012/01/00/me0460/index.html)

Response: Thanks for yours comments, we have carefully read the content and have made corrections: 173.517° added a number in parentheses was modified to 173.517(12) °.

13. L.81: 5.9520(1)

The s.u. value should be in the range 2-19 in the text and the tables.

see, section 2.15, Note for authors

(http://journals.iucr.org/c/issues/2012/01/00/me0460/index.html)

Response: Thanks for yours comments, we have carefully checked the value and made corrections: “5.9520(1) was replaced by 5.9520(11)”.

14. L.89: C16--H16...S3ii- hydrogen-bonding interactions...

Remove hyphen after ii.

Response: We have made correction according to the Reviewer’s comments.

15. L.89, 90: hydrogen-bonding interactions

The distances of the interactions should be included in the text.

In my opinion, 3.674(7), the distance of H16...S3(ii), is too long for

the hydrogen bond.

(--> C-H...S interaction)

Response: We have made correction according to the Reviewer’s comments: the distances of the interactions have been included in the text. In the literature “the van der Waals radii of H and S to be 1.20 and 1.80 A˚, respectively, any H···S contact <3.00 A˚ may therefore potentially be considered significantly”. [Zhou, H.-P., Zhu, Y.-M., Chen, J.-J., Hu, Z.-J., Wu, J.-Y., Xie, Y., Jiang, M.-H.,Tao, X.-T. & Tian, Y.-P. (2006). Inorg. Chem. Commun, 9, 90–92.]. In our paper, the distance of H16...S3ii is 2.79 A˚, so we also added the hydrogen-bonding C-H···S.

16. L.89: thiacyanate

==> thiocyanate

Response: Thanks for yours comments, we have made corrections.

17. L.94-95: Additionally, the puckered ... the sheets of 14.2644(45) A.

I cannot understand this sentence.

Response: Thanks for yours comments, we have carefully read the content and have made corrections: “The L cations were also connected by hydrogen bonds interactions, to form a grid structure in the ab plane. Additionally, the puckered [Cd2(SCN)4] rings occur in each grid”.

18. L.172, 177:

Name of journals should be abbreviated in the style of chemical abstracts.

Response: Thanks for yours comments, we have made corrections: “Liu, F.-H., Chen, W.-Z. & You, X.-Z. (2002). J. Solid State Chem. 169, 199–207; Gao, C., Wu, Y.-Z., Gong, H.-B., Hao, X.-P., Xu, X.-G. & Jiang, M.-H. (2008). Inorg. Chem. Communs. 11, 985–987”.

19. L.179, 185, 186, 187:

Name of journals should be written in italic style.

Response: We have made correction according to the Reviewer’s comments.

20. Figure 1:

N4 (left) should be N4(i).

Cd2 (right) should be Cd2(iii).

Indicate the asymmetric unit in this figure.

Response: Thanks for yours comments, we have made corrections: Figure 1 was uploaded.

21. Figure 3:

Show the following 4 types of hydrogen bond described in the text.

- C16-H16...S3(ii)

- O4-H4...O3(i)

- C15-H15...O1

- C17-H17B...O2(iii)

Response: We have made correction according to the Reviewer’s comments: “dashed yellow, red violet, blue and purple lines indicate C16—H16···S3ii, O4—H4···O3i, C15—H15···O1 and C17—H17B···O2iii interactions, respectively” in Figure 3, and Figure 3 was uploaded.

Special thanks to you for your good comments.

We tried our best to improve the manuscript and made some changes in the paper. Once again, thank you very much for your comments and suggestions.

Best regards,

Hui-Ting Wang