Unicode character <U+009C> (U+009C)

[Wolfgang Engelmann]

On 07.01.22 16:44, Tobias Hilbricht via lyx-users wrote:
> Am Freitag, dem 07.01.2022 um 14:32 +0100 schrieb Wolfgang Engelmann
> via lyx-users:
>> If I run the attached lyx file,I get an error:
>> Missing character: There is no œ (U+009C) in font
>> [LibertinusSerif-Regular.otf]
>>
>> show output anyway gives the attached pdf:
>>
>> nuclear ancient Ca2+
>> (Na+ /Ca2+ exchanger)
>> Ca 2+ homeostasis
>> �Ca2+ dependent kinase
>>
>> The exported luatex tex file was tested with this bash line
>> (oneline!,
>> thanks to people from the Linux User Group Tuebingen)
>>
>> grep -P "[\xc2\x9c]" A-07-C.tex | grep --color=auto -P
>> ".{0,2}[\xc2\x9c].{0,2}" > A.txt
>>
>> and tells
>>
>> %%Package inputenc Error: Unicode character œ (U+009C)
>> œ$\mathrm{Ca^{2+}}$ dependent kinase
>>
>> Could someone tell me, why in the first and the second line of the
>> pdf
>> file the Ca^2+ is shown correctly, whereas it is only shown correctly
>> if
>> I do not (3rd line) put it in mathrm (as done in the 4th line)
>>
>> I also wonder whether this square/cross in front of the 4th line can
>> be
>> searched for under lyx, since it seems to mark extended regular
>> expressions.
>>
>> Wolfgang
> 
> The chemical symbols look inconsistent, nuclear ancient Ca2+ upright,
> Ca2+ homeostasis oblique. Do you have special reasons to avoid mhchem,
> which comes preloaded with LyX? If you use the mhchem-macro for
> chemicals such as \ce{Ca^2+} in LyX math mode, then you get a
> consistent typesetting and a preview.
> 
> Yours
> Tobias
> 
Thanks, Tobias.
didn't know about it.
Wolfgang