Official welcome to our two new graduate students, Sarah
Chachula
(from George
Washington
University)
and Ryan
Tipker
(from
Allegheny
College).
Having two
Sarahs has
created a
little
confusion, but
one will
graduate
soon.
Far right:
view of Burke
Chemistry Lab
from Baker
Tower.
October
2018
September
2018
Congratulations to Sarah, who received the department's Karen Wetterhahn fellowship.
more
August 2018
Lauren and Sarah
are back from
the ACS
national
meeting in
Boston, after
presenting a poster
and talk. Sarah also helped
recruit new
students at
the graduate
school fair.
August
2018
¶ Oxidative
addition of
methylene
chloride? We
did that with
Me-DuPhos
complexes of
Pd (Natalia),
or Rh (Perry
&
Sarah).
Our latest
paper is now
out here
for the Malcolm
Green
special issue
of Inorganica
Chimica Acta.
Patience is a
virtue...check
out the NMR
spectra in the
SI with
Natalia's
handwritten
notes from...
2001!
Let's hope we
can improve on
this timing in
the future.
¶ We enjoyed
visits from
Meaghan Deegan
'14 (almost
done with her
Ph.D. at
CalTech) and
Tim Chapp
Ph.D. '10
(assistant
professor at
Allegheny
College).
Here's the
experimental
selfie,
featuring Tim,
using the
ceiling mirror
in the
Fairchild
elevator.
Note the
kaleidoscopic
effect on
Lauren.
¶ The end of an
era. We miss
you already,
Jake.
Late
July 2018
¶
Congratulations
to Dr. Jake
Muldoon, group
Ph.D.
#16.
This finally
completes the
comeback for
men, and the
score is now
tied at
8. Soon,
Jake is going
to China Lake,
for his
postdoc at the
Naval
Air Weapons
Station.
Dan Pham '16
visited from
Boston for
Jake's talk.
¶ Passing the
torch: new
student Ryan
is learning
everything
from Dr. Jake.
¶ Congratulations
to Meaghan
Deegan '14 for
another
CalTech paper,
this one from
Chem. Sci.
July
2018
§ Our
latest Organometallics paper is out here.
Zhiming made the pincer ligand, plus
iridium and nickel complexes, and Sarah studied
nickel-catalyzed asymmetric phosphination.
Thanks as usual to Arnie and Russ for X-ray
and computational work.
§ Summer term: welcome to new graduate student Ryan Tipker (Allegheny College). Both Lauren and Amber are here, thanks to the department's summer research fellowships, and Sarah is at the Gordon Conference on Organometallic Chemistry in Newport, Rhode Island (photo below). Meanwhile, Jake completed his thesis and is almost done with the Ph.D.
International
#Broader
Impacts, June
2018
Graduation,
June 2018
Congratulations to Perry, who was the first ever degree
recipient from
our recently
renamed
Guarini
graduate
school.
She also
served as a
class
marshal.
More info here.
June
2018
Another Organometallics paper here,
thanks to Ge
and Sarah,
including
observation of
elusive
copper-phosphido
intermediates
in this tandem
Cu-catalyzed
tandem
alkylation/arylation.
May
2018
late
April 2018
More
congratulations:
• Lauren
received a Lemal Fellowship
for summer
research.
• Dr. Liz Lane
'08 (below)
has completed
her Ph.D. from
Brown
(finished at
U. Missouri,
after the Bernskoetter
group
moved).
Next stop, a
postdoc with Christine Thomas at Ohio
State.
Good luck as a
Buckeye, Liz!
April
2018
Another Organometallics
paper! Thanks to Meaghan, Jake and Russ
(#EDA-NOCV) Hughes. Now we know more about the ligand
properties of phosphiranes, both experimentally and
computationally. Compared to phosphines, they're
weaker sigma-donors (as reported earlier), and similar
pi-acceptors (NOT as good as hyped earlier).
more
April 2018
• Lab renovations
complete!
We have
beautiful new
fume hoods,
bigger and
better (and,
at least for a
while,
cleaner) than
the older
versions.
• Congratulations to Amber, who received a departmental Zabriskie fellowship to support her research over the summer.
• Congratulations
to Lauren, who
was selected
for the 2018
Inorganic
Chemistry
Undergraduate
Workshop
at the Fall
ACS National
meeting in
Boston.
• Congratulations
to Jake, who
received an
NRC research
associate
fellowship to
support his
upcoming
postdoc at the
Naval
Air Weapons
Station in
China Lake,
California.
March 2018
Congratulations to Jake and many more patient coauthors. Our phosphirane paper has been published in Angewandte Chemie here!
After the first discovery by Tim
Chapp, Balazs
Varga developed a practical
synthesis. Meaghan
Deegan showed it was highly
enantioselective. More recently Jake
Muldoon, with help from Adam
Eordogh,
figured out the stereochemistry of phosphirane
formation,
inspired by
provocative computational
predictions
from Russ Hughes.
Finally, X-ray
crystallography
from Arnie
Rheingold
and Curtis
Moore
at UCSD
established
the structures
and
P-configurations.
We're
excited.
Why?
You learn
about the
stereochemistry
of
nucleophilic
substitution
*at the
electrophile*
for the SN1
and SN2
reactions.
But what about
the
nucleophile?
That's usually
ignored, since
it's not
chiral.
However,
phosphines act
as
nucleophiles
with retention
of
configuration.
Here's the
standard
picture.
December 2017
• Lab renovations
under way:
brand new fume
hoods are
being
installed.
• Dr. Zhiming
has returned
to China for
his new job at
Xiling Lab
•
Congratulations
to Lauren, who
received a
Hellman Family
Foundation
grant from Dartmouth Undergraduate
Research
to support her
winter term
research.
• Thanks to
Adam for
sending some
treats from
his new home
at ETH-Zurich.
October
2017
• Sarah's first
Dartmouth paper has
been published
in Inorganic
Chemistry.
Cu(diphos*)(X)
sounds simple,
but changing
the chiral
bis(phosphine)
yields
different
structures,
either
3-coordinate
monomers or
4-coordinate
dimers with
bridging
halides and
chelate and/or
bridging
bis(phosphines).
The i-Pr-DuPhos
complexes emit
light on UV
irradiation.
Late
August 2017
• Perry's first
Dartmouth
paper is out
now in Organometallics here.
This
isomerization
was not what
we
expected....check
out the
details, and
see the cool 31P NMR spectra in
the SI.
August
2017
• Farewell to
visiting
researcher
Ádám Eördögh,
now back home
in Hungary
before
starting his
PhD studies at
ETH-Zurich.
Many thanks to
the Rosztoczy
Foundation
for fellowship
support!
• Jake, Sarah
and Lauren
presented a
total of 5
talks and one
poster at the
ACS
National
meeting in
Washington DC.
• Congratulations to Perry on her new job in Silicon Valley at Bloom Energy.
• One more happy
Ph.D.
graduate, Dr.
Zhiming
Xu! He
is #15.
Men are slowly
catching up
and now trail
by 8-7.
Zhiming will
soon move back
home for his
new job at the
Chinese
startup
company Xiling
Lab in
Chengdu.
More June 2017
• Congratulation
to our latest
Ph.D.
graduate, Dr.
Perry
Scheetz!
She is #14,
putting women
ahead
8-6.
June
2017
• Nice to have a
visit from John Jewett '03,
now at
Arizona, on
his way home
from a Gordon
Conference.
• Congratulations
to Jacob (JJ)
Jo '17, who
successfully
completed his
honors thesis
(left hand)
and received
the
departmental Green
Chemistry
award
(right).
Next stop:
UMass medical
school for
clinical
research.
Also, kudos to
recent
graduate and
former
Presidential
Scholar Chase
Shipp '17, who
will be a
consultant in
Boston next
year.
• Jake and Adam
celebrated Polish-Hungarian
friendship day
in March.
• Congratulations
to Lauren
Mendelsohn '19
and Amber
Zimmerman '19,
who received Presidential
Scholarships
to support
their
research.
• Dave was
excited to win
a faculty
mentoring
award from
Dartmouth's
new School of
Graduate and
Advanced
Studies.
More info here.
Early
2017 Roundup
• Congratulations
to Meaghan
Deegan '14,
whose first
paper from
CalTech, with
Jonas Peters,
is out here.
• Welcome to Hungarian M.S. student Adam Eordogh, who is here for a 6-month research visit funded by the Rosztoczy Foundation. Big thanks to former student Balazs Varga M.S. '13 for helping to arrange this!
• Welcome to
returning
undergraduate
researcher
Lauren
Mendelsohn
'19, recipient
of a Sophomore
Science
Scholarship,
and to Amber
Zimmerman '19,
who got an
off-term grant
from Dartmouth
Undergraduate
Research
to support her
work in spring
2017.
November
2016
Our latest paper is out here
in ACS Catalysis! We used all three techniques
(left image) to study selectivity in Pt-catalyzed asymmetric
phosphine alkylation (right). Nice work by current
student Zhiming Xu, Ph.D. alums Brian Anderson and Samantha
Reynolds, and former postdoc Tess Guino-o.
October 2016
On the cover of Organometallics!
That's our (and Paul Pringle's) "then" chemistry from the
90s on the right, done by grad students 1 and 2, Igor
Kourkine and Denyce Wicht. Papers here: (a) J. Am. Chem.
Soc. 1997, 119, 5039-5040. (b) Organometallics
1999, 18, 5381-5394.
Thanks
to the Russian-French
team with the "now" lanthanide catalysts for
including us on their cover.
late
August 2016
Dr.
Ge Wang!
Congratulations
to the latest
group Ph.D.
after her
defense last
week.
She is number
13, following
Dr. Matt
Sanderson from
2015, and
putting women
in the lead
7-6.
August 2016
Alumni news roundup
• U. Hawaii assistant professor Matt Cain (Ph.D. 2011) is making cool new ligands and metal complexes; his latest Organometallics paper was covered by C&E News here.
As you can see
from the
shirt, Matt is
adjusting well
to the Aloha
state.
•
Congratulations
to Brian
Anderson
(Ph.D. 2008),
for his
promotion to
associate
professor,
with tenure!
at Keene
State (NH),
and on his
recent
marriage.
•
Former
undergrad
senior thesis
student John
Jewett '03,
now assistant
professor at
the University
of Arizona,
has received
an NSF
Career Award.
June
2016
•
Congratulations
to Dan Pham
'16 on his
senior honors
theses (one in
chemistry, one
in government)
and on his
graduation.
Dan's research
on
phosphiranium
cations earned
him the
departmental
John L.
Zabriskie '61
senior
chemistry prize,
"to honor one
or more senior
chemistry
majors who
excelled in
undergraduate
research."
Here
Dan and Jake
are drawing
Mes*P
structures on
the glass wall
of the lab.
late
April 2016
•
Congratulations
to 3rd-year
student Jake
Muldoon, who
won another
teaching award
from DCAL
(Dartmouth
Center for
Advancement of
Learning).
More info in
the press
release here.
Can
you find Jake
(he's tall) in
the back row,
flanked by
fellow chem
grad students
Adam
Barczewski and
Sam Touchette?
Plus, note
current Chem 6
student
Yasmeen
Erritouni
(biology TA)
in the front
row.
•
Congratulations
to 2nd-year
grad student
Sarah Gibbons,
whose
undergraduate
research (U
Maryland, with
Bryan
Eichhorn)
on the
composition of
"iron gall
ink", as used
by George
Washington,
was recently
published in Analytical
Chemistry
here.
• Congratulations to Dan Pham '16, who is finishing off his senior honors thesis with the support of a Kaminsky Family Fund grant from Dartmouth's office of undergraduate research (UGAR).
•
Welcome to new
undergraduate
researcher Lauren Mendelsohn '19.
• Alum Jesse
Peltier '14
(see March
2016 below) is
cranking out
the papers at
UCSD.
Peltier,
J. L.; Jazzar,
R.; Melaimi,
M.; Bertrand,
G. Chem.
Commun. 2016, 52,
2733-2735.
Ancillary
ligand-free
copper
catalysed
hydrohydrazination
of terminal
alkynes with
NH₂NH₂.
Link
Li,
Z.; Chen, X.;
Benkő, Z.;
Liu, L.; Ruiz,
D. A.;
Peltier, J.
L.; Bertrand,
G.; Su, C.-Y.;
Grützmacher,
H. Angew.
Chem. Int. Ed.
2016.
N-Heterocyclic
Carbenes as
Promotors for
the
Rearrangement
of
Phosphaketenes
to
Phosphaheteroallenes:
A Case Study
for OCP to OPC
Constitutional
Isomerism.
Link
late
March 2016
NSF
Graduate
Research
Fellowship
Program (NSFGRFP)
success for
two '14
undergrad
alums!
Meaghan Deegan
(Caltech,
honorable
mention) and Jesse
Peltier
(UCSD,
graduate
fellowship)
keep making us
look
good.
Congratulations
to both!
March
2016
Congratulations
to several
group alumni
this month:
• Matt Cain Ph.D. 2011 has published his first paper, on phosphine-phosphaalkenes, as an assistant professor at U. Hawaii. Check it out in Organometallics here, and see his "synthesis in paradise" page here.
• Andy Zureick '13, along with other
Dartmouth alums, is a co-author of the recent U. Chicago
press book "What
Every Science Student Should Know."
• Former postdoc Tess
Guino-o was promoted with tenure at University of St.
Thomas, in Minnesota!
February
2016
Sarah's
"let's talk
research"
video from
Dartmouth
Graduate
Studies is here.
#BroaderImpacts
December 2015
•
New paper, new
journal!
Our first-ever
paper in Tetrahedron:
Asymmetry
has been
published here.
Platinum-catalyzed
triple
alkylation of
a
tris(secondary
phosphine)
selectively
gave a C3-symmetric
P-stereogenic
tris(phosphine).
Congratulations to coauthors Alex Rupert
'07, who originally discovered this reaction, to Matt Cain
for followup, and to Zhiming Xu for figuring out how to
measure the selectivity.
Summer Wrapup, September 2015
• Farewell to Michael Tilby, back to Oxford to finish his undergraduate work
• Welcome to new Chem 87 student Jacob J. Jo '17
• Congratulations to Chris Knarr, MS 2014, who has completed his studies at the Escoffier School of Culinary Arts and is now working as a pastry chef in Austin, TX. Check out his tasty-looking portfolio (sample below) here.
• Jake and Sarah gave a talk and a poster presentation, respectively, at the Boston ACS national meeting.
•
Speaking
Polish was
useful: Jake
had the
unusual chance
to practice
his talk with
Nobel Laureate
Roald
Hoffmann at
Starbucks.
• Jake, Sarah, and Aprahamian student Colleen Gill hang out on the swings near the conference site.
•
Perry
presented a
poster at the
International
Conference on
Heteroatom
Chemistry (ICHAC) in Caen, France in
June.
Thanks to GAANN for
funding her
travel to the
conference, as
well as Jake's
trip.
late
July 2015
•
Welcome to new
undergraduate
researcher
Michael Tilby,
here for the
summer from
Oxford on an
exchange
program.
Michael will
go back to
Oxford to
complete his
Part II
research with
Michael
Willis in
the fall.
•
Matt Cain
Ph.D. 2011 is
now a
professor in
Hawaii.
Check out his
fancy new web
site, "Synthesis
in Paradise."
•
Grad students
Perry Scheetz
and Sarah
Gibbons are
making news
with their
work on the
Graduate
Student
Council.
See the press
releases here
and here.
• #Broader
impact.
Watch Perry
give a talk on
the Science of
Tea at the
Upper Valley
Food Co-op here.
•
Congratulations
to Samantha
Reynolds Ph.D.
2012 on her
new job as
lecturer in
chemistry at
UNH Manchester
(press
release).
July
2015
•
Welcome to new
undergraduate
researcher
(Presidential
Scholar) Chase
Shipp '17.
•
Congratulations
to Zhiming Xu
on the birth
of his son,
and on
completing his
research
proposal (a
bit late; both
happened this
spring).
June
2015
•
Congratulations
to Dr. Matt
Sanderson, who
completed his
Ph.D. thesis
defense on
Friday June
12. He
is Ph.D. #12,
3 years since
#11 (Samantha
Reynolds,
2012), making
the score now
6 women/6 men.
Matt will soon
move to
Tennessee for
his next job
as a visiting
assistant
professor at
the University
of the South
(Sewanee).
•
Three
undergraduate
researchers
are also
graduating and
leaving
Hanover.
More
congratulations
to
¶
David
Clemens-Sewall
(double major
in chemistry
& earth
sciences), who
will be
working at DC Energy.
¶ Rebecca
Xu (double
major in
chemistry
&
psychology),
who will be
teaching
chemistry in
Boston (Teach
for America)
before going
to medical
school.
Rebecca's
thesis on
synthesis of
chiral
phosphines
from the
renewable
chemical limonene
oxide,
derived from
orange peels,
earned her the
Department's
Stephen Wright
'81 Pfizer Green
Chemistry
prize.
Rebecca joins several previous group undergraduates on this
illustrious list.
¶ Haider
Ghiasuddin
(English
major,
chemistry
minor), who
will be a
master's
student at
Harvard (Urdu
poetry and
more!) before
he too becomes
a
doctor.
Several group
members
enjoyed
Haider's
recent English
department
reading from
his novel.
May
2015
•
Our Dalton
paper on the
new PyraPhos
ring system is
out here,
thanks to hard
work by Ge
Wang,
following up
initial
observations
by Tess.
Congratulations
to Ge, who
developed a
new copper
catalyst
(instead of
the original
Pt ones) for
these
reactions.
This
is her first
paper at
Dartmouth!
•
Undergraduate
researchers Rebecca Xu (see below) and
David
Clemens-Sewall
are completing
senior honors
theses.
They gave
impressive
departmental
presentations
this month.
March
2015
Several
2015 updates
• Our paper
on a
luminescent Cu4I4
cluster is out in Inorganica
Chimica Acta. Former REU student Ethan Emerson
is the first author, with help from grad students Matt Cain,
Matt Sanderson and Chris Knarr, plus our collaborators in
Maine (John Ahern and Howard
Patterson) and UCSD (Arnie
Rheingold).
Good timing: Ethan recently was back in Hanover for a visit. Here he and Matt S pose with the paper.
• 2nd-year students Jake and Perry successfully passed their qualifying exams
•
Andy Zureick
'13, now a
medical
student at
Michigan, won
an award
for his summer
research at
Mass
General/Harvard
Medical School
on brain
tumors.
For OLD news (2008-2014),
click here.
last update 6-28-2022