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wy_why007

银虫 (初入文坛)

[交流] 【求助】投acta cry e被拒,作者写的意见,我该如何解决他提的问题

各位大侠:
我的水平不高,写了篇文章投acta cry e被拒,编辑提了些意见,我不能解决,请各位大侠帮帮忙,谢谢!我还想问一下,投acta cry e可以更换编辑吗?谢谢!

下面是编辑提的意见:
The refinement has not fully converged and the number of L.S. was low.
You should after each cycle change in the generated *.res the weighting scheme as suggested, to rename *res to *.ins and to repeat the refinement until the wighting
scheme more or less converges to stable values.

One again: There is a very short O…H…O hydrogen bond. It is wrong to restrain
the pertinent distance O-H. All the description and the discussion of the structure
is wrong!

_publ_section_exptl_refinement
;
Positional parameters of all the H atoms bonded to O and N atoms were calculated
geometrically and were allowed to ride on the C atoms to which they are
bonded. All H atoms had their displacement parameters constrained to be 1.2
(for those bonded to C atoms) or 1.5 (for those bonded to N and O atoms) times
that of their hosts. O---H distances were refined with a restrained bond
distance of 0.82 (1) \%A using DFIX command implemented in
SHELXL97 (Sheldrick, 2008).
;
This is a blunder! You should always consult the difference electron density map.
If you had had done it you would have seen the position of the H atom involved in the
short O…H…O bond.

         

_publ_section_abstract
;
The bisphosphonic acid group in the title compound, C~7~H~14~N~2~O~7~P~2~, has a
strcture similar to zoledronic acid (ZL). ZL is a potent bone antiresorptive
bisphosphonate drug having significant activity against several parasitic
protozoa. EIHDP has inner-salt character, consisting of a negatively charged
PO~3~ group and a positively charged N1 atom. The crystal packing is dominated
by an extensive hydrogen bonding network.
;
There is no PO3 group, rather alkylphosphate.
ZL has nothing to do in Abstract because it is not a title structure.
“inner salt” character: It is quite common that the parts of the molecules
have a different charge. The most important features, such as the description
of the H-bonding, is missing.


phosphonate atom O7 is ionized and
the H atom is transferred to atom N1, which adopts a tetrahedral geometry
(Table 1).

But O7 is an acceptor of the H-bond. Why is not ionized O5? In other words
how can you determine the origin of the H atom attached to N?

Please avoid using abbreviations: The PCP backbone

I must partly apologize for one thing: Using a higher theta limit you the theta shell
is not complete. I would suggest you to remeasure the structure again  
Even
_diffrn_measured_fraction_theta_max    0.976
_diffrn_reflns_theta_full              25.00
is quite low.

Your submission has been rejected twice. It would be pity if such a structure is
lost in case of rejection because the short O…O hydrogen bond is quite interesting.
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marise

木虫 (小有名气)


wsht212(金币+1):谢谢交流,希望常来! 2010-08-23 19:21:31
wy_why007(金币+5): 2010-08-24 07:41:22
重新收录数据,你看这句话:

“I must partly apologize for one thing: Using a higher theta limit you the theta shell is not complete. I would suggest you to remeasure the structure again”

一般完整率要达到98%以上。
2楼2010-08-23 16:40:25
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gohappy

铜虫 (正式写手)


wsht212(金币+1):谢谢交流,希望常来! 2010-08-23 19:21:41
wy_why007(金币+5): 2010-08-24 07:42:29
L.S.  里的数值设高一点,再修正
3楼2010-08-23 16:49:56
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xiaochong98

木虫 (职业作家)

wy_why007(金币+5): 2010-08-24 07:42:35
Your submission has been rejected twice.
换编辑被接受的可能性也非常小,一般情况下不会换编辑的。
北京人
4楼2010-08-23 19:02:27
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chery_yun

wy_why007(金币+20):感谢你的帮助,我对精修不懂,你能否帮我的数据精修一下??谢谢! 2010-08-24 09:46:37
编辑讲你的数据在精修时没有收敛,在精修时应该将每次的.res文件copy到.ins文件中在进行精修,你的H原子也是错误的,仔细看下你的电子密度图,编辑只是建议你重新收集数据,并不是说一定要那样做,你看下重新把数据还原下,在进行解析精修。
5楼2010-08-24 09:31:50
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